Eating Well - Beaming with Health
Eating Well - Beaming with Health
Eating Well - Beaming with Health
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Mim Biem<br />
The Commonsense<br />
Guide to<br />
<strong>Eating</strong><br />
<strong>Well</strong><br />
for the<br />
Nutritionallv<br />
Bewildered -'
Published by ABC Books for the<br />
AUSTRALIAN BROADCASTING CORPORATION<br />
GPO Box 9994 Sydney NSW 2001<br />
Copyright O Mim Beim 1998<br />
First published October 1998<br />
All rights reserved. No part of this publication<br />
may be reproduced, stored in a retrieval system<br />
or transmitted in any form or by any means,<br />
electronic, mechanical, photocopying, recording<br />
or otherwise, <strong>with</strong>out the prior written permission<br />
of the Australian Broadcasting Corporation.<br />
National Library of Australia<br />
Cataloguing-in-Publication entry<br />
Beim. Mim, 1960- .<br />
The commonsense guide to eating well for the nutritionally<br />
bewildered.<br />
ISBN 0 7333 0649 7<br />
1. <strong>Health</strong>. 2. Nutrition - Requirements. 3. Naturopathy.<br />
I. Australian Broadcasting Corporation. 11. Title<br />
613.2<br />
Designed by Midland Typesetters<br />
Set in 11/14pt Caslon540 by Midland Typesetters, Maryborough, Victoria<br />
Colour separations by Finsbury, Adelaide<br />
Printed and bound in Australia by GnBn Press, Addaide
Contents<br />
Introduction<br />
Part I: The Geography of Nutrition<br />
1 The digestive tract<br />
How the worm turns<br />
A brief overview<br />
The ins and outs<br />
A closer look<br />
Surprising saliva<br />
Speed eating<br />
Stomach acid: double, double, toil and trouble<br />
Bile: digestive detergent<br />
Villi: the coal face of digestion<br />
The end of the tunnel<br />
Part 11: Essentials<br />
2 Carbohydrates: fuel and fibre<br />
Classification<br />
What happens to glucose in the bloodstream?<br />
Cows can, horses can, even mice can digest fibre<br />
Types of fibre<br />
Dietary recommendations<br />
What fibre can do for you
The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
3 Protein: strength and structure 37<br />
Look in the mirror - what you see is protein 37<br />
How much is enough? 38<br />
Who needs extra? 39<br />
Amino acids: the Lego blocks of life 40<br />
EAA: all or nothing at all 41<br />
Are you getting enough? 43<br />
Clever vegetarianism: protein combining 44<br />
4 Fat: not a dirty word 46<br />
Fat the Rat 46<br />
Getting to know you 46<br />
Saturated and unsaturated fatty acics 48<br />
Better to be a peroxide blonde than a<br />
peroxide polyunsaturate 49<br />
Fat and fabulous 50<br />
Fat tastes fabulous 51<br />
The tragedy of processed oils 51<br />
EPD and UFOs: the story of essential fatty acids 52<br />
Prostaglandins 53<br />
Mysterous susbstance X 54<br />
Cholesterol: nightmare or blessing? 56<br />
Some slick answers to an oily problem 57<br />
5 Water: the most important nutrient 59<br />
It's wet, what else? 59<br />
How do we know when we are thirty? 60<br />
Diets: the wet and the dry 61<br />
Tap water, filtered water, spring water - which<br />
water? 61<br />
Drink it anyway, you won't regret it 63<br />
Part 111: Bits and Pieces<br />
6 Safe or fake: additives, organics and germs<br />
in the kitchen 67<br />
Sweet as sweet can be: artificial sweeteners 67
Contents<br />
Food additives: preserve or punish? 71<br />
Food safety: not in my kitchen you don't 74<br />
How bacteria breed and spread and what to do<br />
about it 77<br />
Organic shmorganic: chemical free 79<br />
Part IV: Our Daily Food<br />
7 The food we eat<br />
Nuts, seeds and oils<br />
Herbal tea<br />
Vegetables<br />
Grains<br />
Fruit<br />
Milk<br />
Beans<br />
Meat<br />
Eggs<br />
Fish and shellfish<br />
8 The food we eat: but should we?<br />
Coffee<br />
Tea<br />
Alcohol<br />
Chocolate<br />
Part V: Vitamins and Minerals<br />
9 The basics of micronutrients 143<br />
Vitamins: water soluble and fat soluble 143<br />
About minerals 144<br />
Are vitamins and minerals a waste of money? 145<br />
To supplement or not to supplement? 145<br />
Who will benefit from nutritional<br />
supplementation? 146<br />
How long should you take a supplement? 147<br />
What is the RDI and what does it mean for you? 147
The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Mr Average and Mrs Typical<br />
When is the best time to take a supplement?<br />
Synergists and antagonists<br />
Which vitamins should I take?<br />
Be nutritionally responsible<br />
10 Getting to know you: vitamins and minerals<br />
Antioxidants<br />
The vitamins<br />
Bioflavonoids<br />
The minerals<br />
Part VI: Nuts and Bolts<br />
11 Good Diet<br />
Cornerstones to good nutrition<br />
12 Tailor-made<br />
Allergy<br />
Menopause<br />
Premenstrual syndrome<br />
Overweight<br />
Skin<br />
Stress<br />
<strong>Health</strong>y heart<br />
Glossary<br />
Bibliography
To Bill<br />
Acknowledgments<br />
This book is essentially a distillation of ten years of teaching<br />
nutrition to naturopathic students. I would like to acknowledge<br />
my good friend Linda van Niekerk, and my good<br />
husband, Bill Alldritt, for suggesting I create a book from<br />
these lectures.<br />
I am deeply appreciative for the help and advice I have<br />
received from the following people: Lorna Scott, Kerrie<br />
Murrell, Dannae Brown, Doris Alldritt, Craig Ashley-Russell,<br />
Lyn Crossley and Phil. Thankyou.<br />
Special thanks to my publisher, Stuart Neal, for making<br />
the book writing process as painless as possible.
Introduction<br />
I have some very smart patients. Sick, but smart. It always<br />
surprises me how these intelligent, creative, successful<br />
people often do not have a clue about good nutrition. Oh,<br />
they might murmur knowingly about the benefits of omega-3<br />
fatty acids; but when questioned will sheepishly admit to<br />
being flummoxed. They are not alone! In my 10 years of<br />
teaching in naturopathic colleges, I have found a mass of<br />
con-fusion. What is the difference between a legume and a<br />
grain? Is a legume the same as a bean? Should I care? Why<br />
do beans give me flatulence? Other questions include: Why<br />
aren ' t six cups of coffee equivalent to six cups of water?; and<br />
Why do I feel tired after lunch? Let alone knowing the<br />
intricacies of fatty acids. In fact, it takes quite a lot of<br />
background information before one understands that an<br />
omega-3 fatty acid is scientist-speak for a chain of carbons<br />
<strong>with</strong> the first double-bond occurring on the third carbon from the<br />
methyl end. No wonder people get confused!<br />
Nearly every magazine and infotainment program has<br />
something to say about diet and nutrition. Unfortunately, the<br />
information is often contradictory. For example, take the<br />
maxim `Cholesterol is bad ' . In fact, cholesterol is not bad.<br />
Cholesterol is vital. Did you know that from cholesterol the<br />
body makes oestrogen, phospholipids necessary for brain<br />
function, vitamin D and the stress hormone cortisol? It<br />
doesn ' t help to see avocados proudly sporting `no cholesterol '<br />
labels when the poor green darlings don ' t possess a liver <strong>with</strong><br />
xi
xii<br />
The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
which to create cholesterol in the first place. And what's<br />
more, for most people, their blood cholesterol levels have<br />
nothing to do <strong>with</strong> how much cholesterol they eat.<br />
All this makes me angry and an angry naturopath is a terrible<br />
thing. To ease my anger I have written this book. I hope<br />
it gives you easy-to-digest information and the inspiration to<br />
look after your diet and yourself. After all, you are what you<br />
eat.
THE GEOGRAPHY<br />
OF NUTRITION
f-cm<br />
DESCENDING COLON
The Digestive Tract<br />
How the worm turns<br />
In a book about nutrition, why are we discussing the digestive<br />
tract? Basically, the best nutrition will come to nought if your<br />
digestive tract is not up to scratch. The digestive tract, also<br />
known as the alimentary canal or gastrointestinal tract (GIT),<br />
is simply a hollow tube. Much like an earthworm, the tube<br />
is open to the world at both ends - mouth and anus. It is the<br />
interface between the food we eat and our body; essentially,<br />
the geography of nutrition.<br />
Our body is fashioned around this tube. In order for the<br />
saying 'you are what you eat' to be true, what you eat needs<br />
to make the hazardous journey across the wall of the intestine,<br />
into the bloodstream. Until this time, food in the tube<br />
has not been absorbed. What is inside the digestive tract, is<br />
outside you - strange but true.
4 T&e Commonsense Gaide to <strong>Eating</strong> <strong>Well</strong><br />
A brief overview<br />
The GIT begins at the mouth, transforming into the oesophagus,<br />
then the stomach, followed by the small intestine, large<br />
intestine, rectum and anus. The muscular tube is essentially<br />
the same structure throughout, however the terrain changes<br />
according to a 'need to digest' basis. For example, the<br />
stomach lining looks very different from the lining of the<br />
small intestine. The former is thickly coated <strong>with</strong> acidresistant<br />
mucus; and the latter looks like a 1970s shagpile<br />
carpet. On average, the digestive tract is 9 metres long,<br />
roughly as long as two decent-sized loungerooms. Quite a lot<br />
of tubing to fit into the short distance from face to fanny.<br />
digestive -4<br />
is siqfly<br />
4 h ojb *be, open fo fhe li/of/d<br />
Q+ id4 mds - fiod.4 ad anus<br />
&( bdy is fhrhiW amd +ha &be
The Digestive Tract 5<br />
In conjunction <strong>with</strong> the GIT, other structures including the<br />
pancreas, liver, gall bladder, teeth and salivary glands are<br />
needed for the digestive system to function. These ancillary<br />
organs of digestion are attached to, but do not form part of,<br />
the tubing.<br />
The ins and outs<br />
The digestive tract has several functions. The first is ingestion,<br />
being the act of taking food or liquid into the body,<br />
which occurs at the top of the tube, the mouth. The second<br />
function is to facilitate movement along the tube. The wavelike<br />
muscular motion, which pulses in a downward direction,<br />
is called peristalsis. If animals relied on gravity alone for food<br />
to pass along the digestive tract, many a cow or other grazing<br />
animal would be in big trouble, as their mouths are pointing<br />
downwards most of the time.<br />
Function number three gets to the guts of the matter,<br />
digestion. Digestion is the process whereby we break food<br />
down into smaller and smaller bits. The first stage of digestion<br />
is mechanical in nature, where we physically grind the<br />
food <strong>with</strong> our teeth and churn it <strong>with</strong> the thick muscly walls<br />
of the stomach. The next stage of digestion is chemical, taken<br />
care of by digestive enzymes. These enzymes convert the<br />
fragments of food into little itty-bitty bits, small enough to<br />
cross the intestinal wall.<br />
Function four is absorption, the passage of digested food<br />
across the digestive tract into the bloodstream, eventually for<br />
distribution to all parts of the body. If a food is not absorbed<br />
across the intestinal wall, it will continue on downwards and<br />
eventually out the other end of the tube. Of course, the food<br />
needs to be broken down into small enough bits in order to<br />
hurdle across. Protein is broken down into amino acids. Fat
6 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
is broken down into glycerol and fatty acids, and carbohydrate<br />
is broken down into simple sugars. Fibre, which is a form of<br />
carbohydrate, is unable to be broken down and therefore<br />
cannot be absorbed.<br />
The final function of the digestive tract is that of defecation.<br />
Allowing indigestible substances and waste products to<br />
leave the body is an important process of elimination.<br />
A closer look<br />
Taste sensations<br />
I spent a good half of my childhood glued to the television set<br />
watching the Flintstone family. My interest in the evolution of<br />
eating habits probably stems from these times <strong>with</strong> Fred,<br />
Barney, Wilma and Betty. Another favourite, the Jetsons,<br />
seemed, in the 1960s, a plausible if dysfunctional family of the<br />
near future. It made me believe that by 1969 (at the latest), we<br />
would all be eating food pills containing all the nutrients our<br />
bodies required - and we did, in trips to the moon.<br />
There are over 10 000 tastebuds dotted over the tongue.<br />
They clump together in groups of 40 to 60 cells into projections<br />
called papillae that we call tastebuds. Each bud is penetrated<br />
by nerve fibres, which are able to transmit information<br />
about chemicals in food to the brain, which in turn translate<br />
this into taste. Although the tastebuds are scattered over the<br />
tongue, there appear to be several areas of taste concentration,<br />
<strong>with</strong> the sweet buds located around the tip of the<br />
tongue, sour on either side, bitter at the back and salt somewhere<br />
in the middle.<br />
Tastes escape from our tongue into our language: 'how 1<br />
sweet life is'; 'she's a sour puss'; 'what a bitter pill to swallow';<br />
'Bill is the salt of the earth'.<br />
Why the Jetson's all-you-ever-needed-in-a-pill didn't take
The Digestive Tract 7<br />
off is that it lacked taste and smell. Our sense of smell is<br />
linked <strong>with</strong> our emotional and memory centre, located in the<br />
hippocampus in the brain. Certain smells trigger emotions,<br />
like the smell of bacon and eggs on a Sunday morning (particularly<br />
if you are an Aussie male) or freshly cooked bread.<br />
Like Pavlov's dog, exactly the same reflex principle applies<br />
to human animals. Digestive juices begin to flow when the<br />
brain detects a wholesome foodsmell. If you feel well, you<br />
digest well.<br />
Taste provokes a stronger message than smell. Tastebuds<br />
that line the tongue are literally nerve endings, ultimately<br />
triggering other nerves to get the digestive show on the road.<br />
The major players are sweet, sour, salty and bitter. Other<br />
contenders include pungent, alkaline (soapy), metallic (the<br />
coppery taste of blood) and umame, which translates from<br />
the Japanese as yummy (a taste that monosodium glutamate<br />
accentuates and is found mainly in meat). Each taste has its<br />
own shade and nuance.<br />
Acid<br />
During my first term of studying Economics at Sydney<br />
University, I took a Wine Appreciation Course that was held<br />
each Tuesday lunchtime, just before the Statistics 1 lecture. I<br />
failed Statistics that year. (As an accountant I make a good<br />
naturopath!) Nevertheless, it is an ill wind that blows nobody<br />
good . . . The course tutor set up a series of glasses containing<br />
distilled water. To each glass he added a drop of acid. A drop<br />
of tartaric acid in one, a drop of malic acid in another. We<br />
students took a sip from each glass, noticing which part of the<br />
tongue was affected by the sourness. The taste was strongest<br />
at the sides of the tongue, <strong>with</strong> malic acid below the tartaric.<br />
Malic acid is more predominant in cooler climate grapes, tartaric<br />
acid in warmer - we could now show off at dinner parties.<br />
There are hundreds of different types of acids and other
8 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
compounds in many types of foods, not only wine. It stands<br />
to reason that there would be an equal diversity in sweetness,<br />
bitterness and even saltiness.<br />
Sweet, sour, salty and bitter<br />
One can't ask one's tongue why there are different tastes, so<br />
any reason given is pure conjecture. Children, in particular,<br />
like sweet things. It could be because of an association <strong>with</strong><br />
mother's breast milk that has a relatively high sugar (lactose)<br />
content. In addition, sweet fruit contains vitamin C. Humans<br />
cannot make their own vitamin C, yet require it daily.<br />
Perhaps we developed a liking for sweetness, which in nature<br />
supplied us <strong>with</strong> this valuable vitamin. Unfortunately, sweet<br />
foods today, like chocolate bars, rarely contain vitamin C.<br />
Another reason why it may be evolutionarily sound to be able<br />
to detect sweetness, is that many carbohydrate foods are<br />
sweet and carbohydrate is our major source of energy.<br />
The tastebuds that register sour and bitter have a powerful<br />
effect on nerves supplying the digestive system, particularly<br />
to the liver. To help stimulate a sluggish digestive system, I<br />
often recommend a morning glass of hot water <strong>with</strong> either a<br />
teaspoon of apple cider vinegar or the juice of half a lemon<br />
(both are sour), or a predinner drink of bitters in water. Bitter<br />
foods have taken a low profile of late, which is a shame as they<br />
can be powerfully medicinal - also stimulating liver function.<br />
Examples of bitter foods include radicchio (red lettuce), cress,<br />
rocket, olives, bitter melon, grapefruit and coffee.<br />
There are as many savoury tooths as there are sweet tooths.<br />
Salt is an important substance for the body, needed for many<br />
biological functions, including fluid balance. It is a shame that<br />
salt has become so easy to overdo. We can obtain all the salt<br />
our body needs by eating well. There is no need to add extra,<br />
although, if you like (and your diet is low in processed foods),<br />
you could supplement <strong>with</strong> a little sea salt or natural soy sauce.
The Digestive Tract 9<br />
Surprising saliva<br />
We produce about 1 to 1.5 litres of saliva daily. Quite a lot of<br />
spit, you'll agree. Water makes up 99.5 per cent of saliva, moistening<br />
the food sufficiently so that it doesn't scrape on the way<br />
down. The remaining 0.5 per cent is full of surprises. A couple<br />
of enzymes lurk in saliva: ptyalin (<strong>with</strong> a silent 'p') starts the<br />
breakdown of carbohydrate, whereas another enzyme, lysozyme,<br />
is responsible for killing bacteria. Mucin, also present in<br />
saliva, helps lubricate the chewed food, so it literally slips down<br />
the throat. Sodium, potassium and bicarbonates are also present<br />
to balance the pH, which needs to be slightly on the acid side<br />
of neutral (see pHocus on pH, page 10).<br />
Speed eating<br />
Chewing sends a message to the brain that dinner is about<br />
to be served. The brain then transmits this information to the<br />
organs of digestion. If we don't chew, the digestive juices<br />
don't flow and peristalsis slows down. If we don't chew properly,<br />
big pieces of food are going to travel down the digestive<br />
tract and end up in the lower bowel, where they become food<br />
for bacteria, producing gas. If you suffer bloating and flatulence<br />
the first thing you need to do is chew.<br />
There are entire families of speed-eaters. Speed eating is<br />
a lifelong habit and is usually passed down through the generations.<br />
Like any habit, speed eating is difficult to break.<br />
One tip is to put down your knife and fork between each<br />
mouthful to remind yourself to chew.<br />
If a patient walks into my consulting room chewing gum,<br />
I grab a tissue and ask them to spit their gum into the tissue.<br />
If you are not about to eat a meal, don't chew. Chewing gum
I0<br />
The Commo~rsense G de to <strong>Eating</strong> <strong>Well</strong><br />
sends mixed messages to the digestive system and is responsible<br />
for many a bloated tummy and a few stomach ulcers.<br />
Stomach acid: double, double, toil and trouble<br />
Once food gets to the stomach it should be nicely chewed up<br />
and look soupy. The stomach is a muscle-bound organ, about<br />
the size of your fist. It is designed to churn the food around<br />
and mix it <strong>with</strong> the powerful digestive fluid, hydrochloric acid.<br />
Hydrochloric acid (see pHocus on pH, below) is designed to<br />
kill bacteria and other germs, as well as begin the process of<br />
protein digestion. If the acid is strong enough, around pH 1.2<br />
to 3.0, the enzyme, pepsin, will be activated to break down the<br />
bonds joining protein chains together, and the even finer work<br />
of separating amino acids from one another by snipping peptide<br />
bonds. A 3 millimetre thick lining of mucus protects the<br />
stomach wall from being damaged by the acid.<br />
A pHocus on pH<br />
There's more to pH than hair conditioners. pH stands<br />
for hydrogen potential and is a nifly way to measure<br />
acidity. The more hydrogen ions there are, the more<br />
acidic it is. The scale swings from very very acid at 0, to<br />
very very alkaline, the opposite of acid, at 14. Neutral is<br />
7: neither acid nor alkaline. Levels closer to 0 on the<br />
scale are more acidlc: 6 is more acid than 7. However,<br />
6 is not just one time more acidic, but 10 times more<br />
acidic than 7. A change of one whole number on the<br />
pH scale represents a 10-fold change.<br />
0..1..2..3..4..5..6..7..8..9..10..11..12..13..14<br />
acid neutral alkaline
The Digestive Tract<br />
I<br />
pH is all very well, but what has it got to do wfth me?<br />
Maintaining the correct pH is one of the most important<br />
jobs the body has to do. If the pH of our blood varies<br />
by as little as 0.5 to pH 7.0 or 8.0 we are in serious<br />
trouble, courting acidosis or alkalosis. Luckily, the body<br />
is veq good at keeping pH levels <strong>with</strong>in acceptable<br />
parameters. The body needs to maintain stable pH<br />
levels for blood, saliva, inside and outside cells, semen,<br />
stomach and pancreatic juice.<br />
Stomach add<br />
As this book is about nutrition, it seems reasonable to<br />
focus on the pH of our digestive juices. Stomach acid is<br />
wicked acid, as you can see from the table on the next<br />
page, it bubbles away at around a pH of 1.2 to 3.0. If<br />
you were to accidentally spill a couple of drops of<br />
stomach acid on your arm, it would bum the flesh away.<br />
Ouch. We need it to be so acidic to break some of the<br />
bonds holding protein strands together. Also, acid that<br />
powerful is an excellent death trap for bacteria and other<br />
germs. In fact, if stomach acid is not add enough (a<br />
condition called hypochlorhydria) , protein is inadequately<br />
digested. This can cause digestive problems,<br />
such as bloating, as well as increasing the likelihood of<br />
food allergies, as partially digested protein fragments are<br />
absorbed thereby setting up an immune response in the<br />
body. Another down side of insufficient stomach acid is<br />
lack of zap power. Bacteria, &uses et a1 have a greater<br />
chance of surviving and setting up shop lower down the<br />
bowel. People <strong>with</strong> low stomach acid are more likely to<br />
suffer food poisoning and travellers' bowel. Other signs<br />
of low stomach acid include peeling and weak fhgernails,<br />
burping a lot, flatulence, abdominal bloating,
1.2 T&e Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
feeling very full after not-so-big meals and dry lips all<br />
the time.<br />
A teaspoon of herbal bitters in water before dinner,<br />
or a digestive tablet containing hydrochloric acid <strong>with</strong><br />
each meal can help restore underactive stomach acid.<br />
Very rarely do people suffer from an excess of<br />
stomach acid. Symptoms such as refIux or heartburn<br />
may feel like there is too much acid, but it is more the<br />
case of acid being in the wrong place at the wrong time.<br />
Similarly <strong>with</strong> stomach ulcers, the acid should not have<br />
been able to penetrate the protective mucus lining in<br />
the fust place. Stomach ulcers are more often the fault<br />
of bacteria (Heficobactor pylon? andlor damage from<br />
aspirin, cigarette smoke, alcohol, cortisone or stress.<br />
1- ~uice, sbh<br />
acid<br />
vinegar, wine, carbonaCecl@ drink<br />
juia, juice, v~jMal fluid<br />
*<br />
urine, ~a/iVd<br />
hqt~ (disfilled)<br />
hilk, blood, semen<br />
p4~reafrc )ice, eggs, bile<br />
hking wid<br />
milk cf maynesid<br />
household arnMoniq
The Digestive Tract 13<br />
After departing the stomach, the ex-meal is jettisoned into<br />
the first part of the small intestine, the duodenum. It is now<br />
called chyme, not as in doorbell but as in crime. Immediately,<br />
we need damage control. The chyme, which is highly acidic,<br />
has been dumped into a part of the body, the duodenum,<br />
which (unlike the stomach) is ill-equipped to deal <strong>with</strong> high<br />
acid. Alkaline, digestive secretions from the pancreas and gall<br />
bladder buffer the acid to acceptable levels.<br />
The pancreas is an ice-cream cone shaped organ that<br />
spends its life lurking behind the stomach. Around meal-time<br />
it becomes a hive of activity, on one side excreting pancreatic<br />
juice into the digestive tract and on the other secreting<br />
insulin into the bloodstream. The pancreas produces valuable<br />
digestive enzymes and alkaline fluid (bicarbonate) that are<br />
collectively delivered into the small intestine. There are pancreatic<br />
enzymes for every occasion: enzymes for the digestion<br />
of fat called lipase; enzymes for the digestion of carbohydrate<br />
called amylase; and enzymes for the digestion of protein<br />
called protease. These digestive enzymes are able to break<br />
down fat, carbohydrate and protein into small enough units<br />
to be able to be absorbed across the wall of the small intestine<br />
into the bloodstream.<br />
Bile: digestive detergent<br />
The gall bladder is a sac that carries bile, a greeny brown<br />
liquid made by the liver. Bile is an example of recycling in<br />
action as it is part waste product, part digestive secretion.<br />
Imagine you are at a barbecue. The scene: 1977. The day<br />
is Sunday. Early January. It is stinking hot. There are several<br />
late model Monaros parked on the wilting grass. The music:<br />
Boz Scaggs. Coleslaw in parquet bowls, garlic bread wrapped<br />
in foil, potato salad and chops and sausages on the barbie.
14<br />
The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Unfortunately you are washing up. You are not environmentally<br />
aware; you cannot throw the plates away - they are<br />
your mother's plastic picnic plates and she wants them back,<br />
clean. The three choices are:<br />
1. wash the plates under the cold water tap;<br />
2. wash them under the cold water tap <strong>with</strong> detergent; or<br />
3. wash them in hot water <strong>with</strong> detergent.<br />
Left to its own devices, fat tends to blob. Mixing it <strong>with</strong><br />
cold water only serves to make things worse, whereas hot<br />
water melts the fat. Detergent disperses fat into tiny droplets<br />
that are easier to deal <strong>with</strong>. This process is called emulsification.<br />
Choice 3 is the correct answer.<br />
If we return to the small intestine, we have a similar situation.<br />
It is very warm (body heat) and bile from the gall<br />
bladder acts as a digestive detergent, emulsifying the fat into<br />
smaller droplets. These droplets are small enough so that<br />
lipase, the fat-digesting enzymes from the pancreas, can<br />
break down the fat into fatty acids and glycerol. Then they<br />
can be absorbed across the intestinal wall.<br />
Villi: the coal face of digestion<br />
The small intestine is where virtually all digestive action<br />
happens. The small intestine is 6.4 metres long and is small<br />
in diameter, roughly 2.5 centimetres. It folds on itself like a<br />
slippery snake and takes up a fair amount of space in the<br />
abdomen. The first part of the small intestine, the duodenum,<br />
is where most absorption occurs, although there are<br />
opportunities down the entire length, including the jejunum<br />
and the ileum that joins the large bowel. The nutrients, fatty<br />
acids, glycerol, amino acids, glucose, vitamins and minerals<br />
cross over the thin layer of cells into the bloodstream. The<br />
majority of these nutrients follow the portal vein that takes
The Digestive Tract 15<br />
blood straight to the liver where they will be sorted out and<br />
sent on to wherever they are needed.<br />
The topography of the small intestine consists of fmgerlike<br />
projections called villi. Each villus is only a<br />
pis up wiH\ the<br />
pcrtal vein whih )q<br />
nkienk 6 +he / i v ~<br />
couple of cells thick and is where nutrients are absorbed<br />
into the bloodstream. The villi are the coal face of digestion.<br />
These villi are custom made to increase the surface<br />
area of the small intestine. Some dedicated scientist<br />
(<strong>with</strong> a very small tape measure) measured up and<br />
down each villus for the entire 6.4 metres and calculated<br />
that the area for absorption is similar to the expanse of<br />
a football field.<br />
Amino acids, short-chain fatty acids, glycerol and<br />
glucose enter the vende (small vein) that joins up to the<br />
portal vein that goes to the liver. Because of the logistical<br />
problems of mixing fat in a watery environment, longchain<br />
fatty acids form into little packages called micelles<br />
and later chylomicrons that travel in the lacteal (central<br />
vessel in the villus), which is in fact an outpost of the
16 The Commonsense Guide to <strong>Eating</strong> WeZZ<br />
lymphatic system. The chylomicrons eventually enter<br />
the bloodstream, go to the liver and are then transformed<br />
into lipoproteins. The arteriole, a small artery,<br />
feeds the cells of the villus <strong>with</strong> nutrients and oxygen.<br />
The end of the tunnel<br />
The large bowel is much shorter than the small intestine,<br />
around 1.5 metres long, but it is much wider, 6.5 centimetres<br />
in diameter. At the end of our digestive journey, over 90 per<br />
cent of digestion has occurred by now. A few micronutrients<br />
and some water can be absorbed from here but the large<br />
bowel is not set up for absorption.<br />
The large bowel hangs in an upside down 'U', starting from<br />
the right-hand side where it joins the small intestine at the<br />
ileo-caecal valve, up the ascending colon, across the transverse<br />
colon and down the descending colon on the left-hand<br />
side. The rectum is where faeces are stored before they exit<br />
Abdominal massage can be very helpful for people who<br />
are constipated, suffer pain from the likes of diverticulitis,<br />
or just hold stress in their bowel. Lie down on your<br />
back, <strong>with</strong> your head on a pillow and a pillow under<br />
your bent knees - this will take any muscular tension<br />
away from the tummy. With the pads of the fingers of<br />
one hand, slowly and deeply, massage in small circles<br />
from the right-hand side above your hip, following the<br />
direction of the bowel. If there is any pain, ease up and<br />
then go back <strong>with</strong> a gentler motion. This massage can<br />
be done <strong>with</strong> warm oil or talcum powder.
Tde Digestive Tract 17<br />
via the anus. Throughout the entire digestive tract! there are<br />
literally billions of microorganisms, many of which are<br />
beneficial to our wellbeing (see probiotics box, page 34).<br />
Faeces are 75 per cent water and the rest is made up of<br />
bacteria (mostly from the bowel itself), fibre and sloughed off<br />
cells from the intestinal tract. Australians, among others, are<br />
a timid lot when it comes to talking about poo. Although<br />
there are enough scatological jokes to fill a library, few of us<br />
are willing to speak openly about something that is part of<br />
everyday life. This is unfortunate, as one can learn a lot from<br />
droppings; not least how well we are digesting our food. My<br />
first practical understanding of this came soon after I graduated.<br />
I had found work <strong>with</strong> a large vitamin company where<br />
one of my jobs was to answer letters from customers. Mrs P<br />
had written to complain about the quality of one of our<br />
vitamin pills. In case we felt inclined to doubt, she had kindly<br />
returned the tablet in question, fastidiously wrapped in toilet<br />
paper, after being retrieved from the loo. After recovering, I<br />
wrote to Mrs P tactfully pointing out that the problem was<br />
not <strong>with</strong> our vitamin pill, but <strong>with</strong> her digestive system.<br />
On a more serious note, bowel cancer is one of the most<br />
common forms of cancer. A change in bowel habits or the<br />
sign of blood could be early warning signs of this deadly<br />
disease (more often than not red blood is the sign of a haemorrhoid<br />
or small fissure, but it is silly not to investigate). It<br />
is a tragedy that we find it difficult to talk about this natural<br />
process of life openly and free from embarrassment.<br />
A fart is predominantly hot air expelled from the anus,<br />
whereas a burp is air released from the other end.<br />
Flatus, a posh word for fart, is a mixture of carbon<br />
dioxide, hydrogen and methane <strong>with</strong> various quantities<br />
of aromatic substances including hydrogen sulfide
18 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
(rotten egg gas), indole, skatole and arnrnonia (smells<br />
like tomcat wee). On average, we expel half a litre per<br />
day. Flatus arises from two causes. The first is the result<br />
of swallowing too much air. Fast eaters and fast talkers<br />
may find they need to expel excess air. The same may<br />
be true for mouth-breathers, those for whom the option<br />
of nostril breathing is blocked, including sinus sufferers<br />
and snorers. The other cause is home-grown. Of the<br />
bions of bacteria that inhabit our digestive tract, by far<br />
the majority live in the large intestine. Many produce gas<br />
as a by-product. Poor digestion is oAen the cause of<br />
flatulence and bloating, as the bacteria feast on food that<br />
has not been digested in the small intestine and has<br />
travelled down to the large bowel.
ESSENTIALS
Carbohydrates:<br />
Fuel and Fibre<br />
The word carbohydrate to many people conjures up plates of<br />
pasta, mashed spuds and rice. While these are carbohydraterich<br />
foods, the world of carbohydrates extends to fruits, vegetables,<br />
honey, sugar and fibre.<br />
Classification<br />
Humans love to classify things. Horoscopically: Aries or<br />
Pisces; racially: Chinese or Greek; religiously: Jewish or<br />
Buddhist. Carbohydrates are classified according to the<br />
complexity of their chemical structure. The least complicated<br />
structures, one or two units, are called 'simple' carbohydrates<br />
and the more elaborate structures, up to thousands of units,<br />
are called 'complex' carbohydrates.
22 The Commonsense Gzcide to Bating <strong>Well</strong><br />
From the humblest to the most grandiose carbohydrate<br />
there are only three elements involved: carbon (C),<br />
hydrogen (H) and oxygen (0). Fie or six carbons jointo<br />
form rings, the oxygen and hydrogen just hang<br />
off these rings. The most common is the six-carbon<br />
structure, or hexose (hex-six, ose-sugar). And the three<br />
common hexoses in food are glucose, galactose and<br />
fructose, <strong>with</strong> glucose greatly outnumbering the other<br />
two.<br />
If you join two monosaccharides together, you have a disaccharide<br />
(di-two, saccharide-sugar). Joining glucose + glucose<br />
= maltose (the breakdown product of starches); glucose +<br />
fructose = sucrose (table sugar); and glucose + galactose =<br />
lactose (milk sugar).<br />
Glucose is our body's major fuel. Virtually every cell lives<br />
for and by glucose. Without glucose we die. However, in<br />
nature, glucose per se is rarely found. Rather, it is complexed<br />
<strong>with</strong> other simple sugars. As a consequence, our physiology<br />
has adapted to prefer complex carbohydrates.<br />
Complex carbohydrate no. 1: Starch<br />
Only plants contain starch, particularly grains, beans, seeds,<br />
nuts, some vegetables and fruits. A cubic inch of a starchy<br />
food like potato contains a million starch molecules. Carbohydrates<br />
should be about 65 to 70 per cent of our diet, <strong>with</strong><br />
much of it in the form of starch. We may eat starch, but in<br />
order to utilise the fuel, glucose, we have to break the<br />
complex carbohydrate into single-unit sugar molecules, predominantly<br />
glucose.
Carbohydrates: Fael and Fibre 23<br />
Complex carbohydrate no. 2: Glycogen<br />
Glycogen is the second type of complex carbohydrate. It is<br />
how the human body stores glucose. Sometimes called<br />
'animal starch', glycogen does not occur in plants. We store<br />
most of it in the liver (up to 400 grams) as well as in the<br />
muscles (up to 100 grams). Glycogen is stored as ready<br />
energy. Like going to the store for food, if insufficient glucose<br />
is available from the bloodstream, it can be obtained by<br />
breaking down stored glycogen.<br />
Complex carbohydrate no. 3: Ffbre<br />
The third type of complex carbohydrate is fibre (also see<br />
fibre, page 29). At first glance under the microscope, fibre<br />
looks very similar to starch - a large group of glucose molecules.<br />
Upon closer examination the dissimilarity becomes<br />
apparent: the bonds holding the glucoses together in starch<br />
are different from the bonds holding the glucoses together in<br />
fibre. Humans don't possess the specific enzymes to untie<br />
these bonds, so the fibre continues down the digestive tract<br />
undigested. Cows and other animals have these enzymes in<br />
their rumen which explains why a horse can enjoy a square<br />
meal of hay and we can't.<br />
Glycaemtc index<br />
The glycaernic index is a ranking of foods based on their<br />
immediate effect on blood sugar levels. The greater the<br />
index, the quicker and higher blood sugar levels rise.<br />
Glucose is the gold standard at 100. Blood sugar levels<br />
are important for many things, including brain function,<br />
energy levels, insulin production and mood.<br />
Not all sugars are created equal. Glucose readily<br />
crosses over the intestinal wall into the bloodstream.<br />
The other single sugars vary in the speed at which they
'<br />
24 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
I<br />
cross this barrier, <strong>with</strong> fructose taking more than double<br />
the time of glucose and galactose skipping over 10 per<br />
cent faster.<br />
This recently acquired information has thrown the<br />
nutritional world into a tizz. In the past, everyone<br />
thought that complex carbohydrates have a slower<br />
impact on blood sugar levels than simple carbohydrates.<br />
Not so. For instance, take fructose, a single sugar, which<br />
has a glycaemic index of 23 compared <strong>with</strong> bread, a<br />
starchy food, which has a glycaemc index of 75. A total<br />
reverse of what we formerly thought. This information<br />
has had the greatest influence on diabetics, a disease<br />
whose nutritional world revolves around taking insulin<br />
according to levels of blood sugar. Who would have<br />
guessed that honey has a more moderate effect on<br />
blood sugar than parsnips or baked potato?<br />
There are several factors thought to affect glycaemic<br />
index, including fibre, anti-nutrients such as phytates<br />
and tannins, acidity, fat and protein.<br />
Although the glycaemic index presents us <strong>with</strong> some<br />
fascinating information, it is important to realise that the<br />
index is relevant to that food eaten in isolation. Something<br />
that rarely happens. We tend to eat foods like<br />
baked potato <strong>with</strong> other things like meat and peas, and<br />
these other foods bring down the glycaemic index to<br />
less panicky levels.<br />
What happens to glucose in the bloodstream?<br />
Once the sugar molecule (whether it came from a jellybean<br />
or a baked bean) crosses the intestinal wall, it is swept into<br />
a fast-flowing river of blood (portal circulation) taking all the
Carbohydrates: FzleZ and Fibre 25<br />
nutrients of digestion straight to the liver to be sorted and<br />
recirculated. If there are any toxins, the liver will hopefully<br />
be able to detoxify them before they are allowed to recirculate.<br />
After a meal, glucose is absorbed into the bloodstream<br />
and blood glucose levels will increase. A part of the brain,<br />
the hypothalamus, keeps a check on the amount of glucose.<br />
If it exceeds or falls below a particular range, orders are issued<br />
to set things right. The average amount of sugar circulating<br />
at one time is 20 grams, or four teaspoonsful. So you can see<br />
that there is not a lot of room to play around <strong>with</strong>. If something<br />
is wrong <strong>with</strong> the regulation, sugar in the blood can<br />
remain too high, as in the case of diabetes.<br />
Hypoglycaemia<br />
Hypoglycaemia cited in medical texts literally means<br />
'low (hypo) blood (aemia) sugar (glyc)', where the circulating<br />
blood sugars stay below normal levels for a prolonged<br />
period. This can be life-threatening and is usually<br />
drug or alcohol induced. On the other hand, the hypoglycaemia<br />
that natural therapists frequently diagnose, is<br />
a condition of fluctuating or seesawing blood sugar<br />
levels. Symptoms of this include exhaustion, depression,<br />
anxiety, irritability, mood changes, headaches, dizziness,<br />
sweating, tremor, fast heart beat (tachycardia),<br />
muscle pain and weakness, conksion, forgetfulness,<br />
sweet craving, reduced libido, excessive hunger<br />
between meals, waking exhausted, nausea before<br />
meals, tired after lunch and craving sweets, coffee, cigarettes<br />
and alcohol. Most symptoms improve after<br />
eating, reflecting an increase in blood sugar.<br />
The following factors contribute to hypoglycaemia:<br />
Missing meals, especially breakfast. By the time you<br />
eat lunch it could be 16 or 17 hours since last night's
26 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
dinner. You have effectively entered a fasting state, <strong>with</strong><br />
low blood sugar levels.<br />
• A sweet tooth.<br />
• High glycaemic index foods eaten on their own. The<br />
glycaemic index (GI) ranks foods according to how<br />
quickly they raise blood sugar levels. Foods <strong>with</strong> a high<br />
GI, that is, between 70 and 100, will increase<br />
blood sugars faster and higher than foods <strong>with</strong> a low GI.<br />
• Substances that cause a rapid and unsustained rise in<br />
blood sugar levels include caffeine (coffee, cola and<br />
guarana), nicotine and alcohol.<br />
• Stress causes an increase in adrenalin that raises blood<br />
sugar levels.<br />
• Deficiencies in the vitamins and minerals which are<br />
necessary for sugar metabolism are bound to cause<br />
problems <strong>with</strong> sugar metabolism. The nutrients in<br />
question include zinc, chromium, calcium, magnesium,<br />
manganese and vitamins B1 and B3.<br />
What to do<br />
The treatment of hypoglycaemia is easy and results can be<br />
felt <strong>with</strong>in a few days.<br />
• Eat small meals, regularly: breakfast, morning tea,<br />
lunch, afternoon tea, dinner and supper.<br />
• Each meal should contain a little protein and high fibre<br />
carbohydrate - for example, cheese and wholemeal<br />
bread, brown rice and dhal, beans on toast, egg and toast,<br />
tuna and rice, fish and salad.<br />
• Eat plenty of fibre. Fibre slows down the rate at which<br />
sugar is absorbed.<br />
• Avoid the triggers sugar, alcohol, coffee, cigarettes.<br />
• Foods which are particularly good for stabilising blood
Carbohydrates: Fuel and Fibre 27<br />
sugar levels include apples, blueberries, rye, oats,<br />
green beans, fenugreek and beans.<br />
Take a B-complex each morning or a tablespoon of<br />
brewer's yeast. Brewer's yeast has the advantage of<br />
containing chromium, an important mineral in sugar<br />
metabolism.<br />
Once the glucose is absorbed into the bloodstream, it<br />
becomes known as blood sugar or blood glucose. Much of it<br />
enters cells where it will be converted into energy via a series<br />
of chemical reactions known collectively as the Krebs cycle<br />
(see box below). Every cell needs energy to do its job. Muscle<br />
cells use energy to move us around, lung cells use energy to<br />
accept oxygen. Every cell uses energy for its own health, as<br />
well as fulfilling its role in the body. The favoured fuel for<br />
cell energy is glucose. Glucose passes from the blood across<br />
the cell membrane and into the cell <strong>with</strong> a small push from<br />
the hormone insulin.<br />
Exactly how do I get energy from food?<br />
The Krebs cycle<br />
Nothing worthwhile is ever easy. After we go through all<br />
the palaver of digesting our food, further biochemical<br />
tinkering needs to happen in order to extract energy. The<br />
body's preferred source of energy is glucose, but energy<br />
can also be obtained from fat and protein.<br />
After glucose has been gently shoved into the cell by<br />
insulin, the next step - glycolysis - begins the energyreleasing<br />
process. With the help of various enzymes,<br />
glycolysis is a series of chemical conversions that<br />
changes the six-carbon glucose ring into 2 three-carbon<br />
units known as pyruvic acid.
28 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Little energy is released in this process and sometimes<br />
that is all that is needed, but usually the maximum amount<br />
of energy is required. The pyruvic acid enters the next<br />
stage, known as the Krebs cycle or citric acid cycle, a kind<br />
of biological ferris wheel. At each station of the wheel's<br />
revolution, the molecule will be set upon by certain<br />
enzymes, releasing energy along the way. After all the<br />
energy has been delivered, all that is Iefi is water (H 2 0)<br />
and carbon dioxide (C02) which can be breathed out of<br />
the body. The ferris wheel is located on little organelles<br />
(structures <strong>with</strong>in cells) called the mitochondria. Cells containing<br />
lots of mitochondria, like muscle cells, are able to<br />
produce lots of energy. Cells <strong>with</strong> relatively few rnitochondria,<br />
like fat cells, produce less energy.<br />
The Krebs cycle will only be activated if oxygen is<br />
available. If, for some reason, oxygen is scarce, the<br />
pyruvic acid will be converted to lactic acid. Movement<br />
of the body requires muscle power and muscles need<br />
energy, especially so during exercise. Unless plenty of<br />
oxygen is available to activate the Krebs cycle there will<br />
be a build-up of Iactic acid, which causes an unpleasant<br />
sensation. If a particular group of muscles is worked<br />
powerfdly for more than a few seconds we often experience<br />
a burning sensation.<br />
Incidentally, this is what aerobic exercise is all about.<br />
With sufficient oxygen, muscles are able to use energy<br />
obtained via the Krebs cycle. Aerobic exercise includes<br />
running, swimming and cycling; as opposed to anaerobic<br />
exercise such as weight lifring, where you're more<br />
likely to feel the lactic acid burn.<br />
If the glucose isn't immediately snapped up and used for<br />
energy it can be packed up and stored for a while to be used
Carbohydrates: Fuel and Fibre 29<br />
as energy at another time. One way of doing this is creating<br />
glycogen, the complex carbohydrate mentioned earlier. The<br />
only hiccup here is that there is limited amount of storage<br />
space for glycogen: around half a kilo. So, if all the glycogen<br />
storage space is taken, any extra glucose will be converted to<br />
fat.<br />
Our body performs an act of alchemy changing carbohydrate<br />
into fat. Fat and carbohydrate are completely different<br />
entities, although they both contain the basic units of carbon,<br />
hydrogen and oxygen. Eat is the most economical way to<br />
store extra energy. We store energy as fat because it takes up<br />
less room than storing it as carbohydrate.<br />
Cows can, horses can, even mice can digest<br />
fibre<br />
Fibre is an important part of our diet, yet it is not a nutrient.<br />
It contains no calories, thus can give us no energy and<br />
virtually passes through the digestive system untouched.<br />
Nevertheless, you will be a very sick puppy if you don't eat<br />
enough fibre.<br />
Fibre is a type of carbohydrate found in plants. The human<br />
digestive system does not have the correct enzymes to break<br />
down and absorb fibre. However, cows, horses, even mice<br />
have the enzymes to utilise fibre for fuel.<br />
Types of fibre<br />
Until a few years ago fibre was fibre. It was the husky bran<br />
surrounding wheat called cellulose, the bit that gets stuck in<br />
your teeth. When it first became apparent that fibre had some<br />
benefit, we all raced for the bran and began tipping it into
30 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
and onto everything. What was formerly sneered at as chaff<br />
for horses became the `in ' food for the health conscious. Chaff<br />
suddenly trebled in price <strong>with</strong> the emergence of bran barons!<br />
Nowadays, our knowledge of fibre is a lot more extensive.<br />
For a start, we know that there are several different varieties<br />
apart from cellulose.<br />
Cellulose is the fibre that gives plants backbone. It is insol-<br />
uble in water. Cellulose is found mainly in the bran of grains<br />
such as wheat.<br />
Pectin is abundant in fruits; for example, apples, oranges<br />
and also in some root vegetables. Pectin swells up in size<br />
when it is dissolved in water and for this reason is helpful in<br />
treating constipation and diverticulitis, as it helps form a<br />
bulkier,<br />
softer stool. It is a soluble fibre, capable of lowering cholesterol<br />
and removing toxins from the body.<br />
Mucilage is a type of fibre that is water soluble and forms soft<br />
and demulcent slippery stuff; for example, linseed, psyllium,<br />
slippery elm and marshmallow. These fibres are used to help<br />
soothe irritated linings of the digestive system as in ulcers,<br />
colitis and diverticulitis. It is also very good for constipation<br />
where the stool is hard and difficult to pass.<br />
Algin is a type of fibre found in seaweed. Although it is mostly<br />
used in the food-processing industry, the fibre in seaweed<br />
has the ability to chelate <strong>with</strong> heavy metals such as lead, so it<br />
makes a very good detoxifier. It also reduces the<br />
ill-effects of radiation, which made seaweed very popular<br />
post-Chernobyl.<br />
Resistant starch is starch which resists digestion and<br />
passes<br />
through to the large bowl. Beans contain some of this resistant<br />
starch, which is known as oligosaccharides.<br />
Chitin is an unusual fibre, one that is not carbohydrate, found<br />
in fungi, yeasts and the exoskeleton of invertebrates such as<br />
insects and crustaceans. It is basically insoluble and has been<br />
found to absorb fats. The diet industry has cottoned on to
Carbohydrates: Fuel and Fibre 31<br />
this and has produced tablets containing chiton that will stop<br />
fat from being absorbed. This is not a good way to lose weight<br />
as fat brings to us so many important compounds, including<br />
the fat soluble vitamins.<br />
Lignin is another non-carbohydrate fibre. It is found in the<br />
woody parts of plants like the stems and cores of apples and<br />
pears, as well as in linseeds, rye and buckwheat. Lignin can<br />
be metabolised by gut microflora into lignan, a phyto-oestrogen,<br />
offering protection against hormone-dependant cancers<br />
such as breast, uterine and ovarian cancer.<br />
Dietary recommendations<br />
Eat 30 to 40 grams of fibre daily. This looks like: three to<br />
five vegetable servings, plus two to four fruit servings, plus<br />
six to eleven wholegrain pasta or bread or legume servings.<br />
It is best to increase your fibre intake gradually over several<br />
weeks to allow the digestive system to adapt. Otherwise you<br />
(and your loved ones) will experience flatulence.<br />
Drink lots of water, fibre is very thirsty. If you don't drink<br />
enough water, you will find your stools become dry and hard.<br />
Select a variety of fibres from a variety of foods; for example,<br />
fruits (including skin, pits and cores), seeds, vegetables (root<br />
and leafy), grains and legumes.<br />
What fibre can do for you<br />
In the bowel<br />
Fibre generally accelerates transit time, meaning that it takes<br />
less time for food to travel the length of the digestive tract<br />
from mouth to anus. In general, this is seen as a good thing.<br />
In the Western world, transit time is far too slow, adding to
32 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
all sorts of problems including constipation and bowel cancer.<br />
The longer the stool is present in the bowel, the longer it has<br />
time to form toxic products of fermentation and putrefactions.<br />
Some of these will be absorbed into the bloodstream. Fibre<br />
is as good for constipation as it is for diarrhoea. This may<br />
sound contradictory but the soluble fibres, including pectin<br />
and psyllium, swell up so much that they can slow down a<br />
too-speedy transit time, allowing time for nutrients to be<br />
absorbed, one of the problems <strong>with</strong> diarrhoea.<br />
Heavy metal<br />
Fibre has the ability to hold on to and excrete heavy metals<br />
such as lead, aluminium and mercury. The less of these in<br />
the body, the better. The down side is that fibre can also<br />
hold on to good minerals such as calcium and iron. This is<br />
one reason not to add extra bran to the diet but rather to eat<br />
a diet that is intrinsically rich in fibre; foods that will provide<br />
extra minerals instead of just removing them.<br />
Phytates<br />
Phytates are not a kind of fibre, although they are oAen<br />
found in cereals and legumes. Phytates or phytic acid<br />
can reduce the absorption of certain minerals, including<br />
iron, zinc, calcium and others. Phytic acid is the calcium<br />
or magnesium salt of inositol and phosphoric acid. Phytates<br />
are destroyed by heat which means that baked or<br />
cooked grains and legumes do not contain significant<br />
amounts of phytates, although consuming large quantities<br />
of raw bran and uncooked rolled oats could be a<br />
problem.
Ca~bohyd~ates: Fael and Fibre 33<br />
Decrease choIestero1<br />
Fibre, particularly soluble fibre, decreases cholesterol. One of<br />
the mechanisms is that it will hold on to excess cholesterol<br />
in the bowel and prevent it from being reabsorbed.<br />
Help <strong>with</strong> weight loss<br />
Fibre slows the rate at which food leaves the stomach. This<br />
has a twofold benefit. First, you will feel fuller longer after<br />
you have eaten, helping you to lose weight. Second, as nutrients<br />
take longer to be absorbed, blood sugar levels rise<br />
slower, which is very good if you suffer from diabetes or<br />
hypoglycaemia.<br />
Prebf 0th<br />
Because fibre is not absorbed in the small intestine, the bacteria<br />
in the lower bowel are able to use it for fuel. Fibre is<br />
the 'prebiotic' that feeds the good bugs, known as probiotics<br />
(see box on page 34). The bacteria nibble on the fibre and<br />
in return give us some valuable by-products, including antibiotic<br />
substances (for example, nisin), which help fight bowel<br />
infections. In addition, the bacteria produce short-chain fatty<br />
acids (SCFAs), mainly acetate, propionate and butyrate in the<br />
ratio 60:24:16 (see box on page 47). These short-chain fatty<br />
acids have shown to be incredibly beneficial. They are used<br />
as fuel by the cells that line the bowel and are probably the<br />
reason behind the statistic that people whose diets are low in<br />
fibre are more likely to get bowel cancer. A couple of less<br />
popular by-products include the gases hydrogen, carbon<br />
dioxide and methane - the main components of flatus.<br />
Increased fibre has proved to be helpful as part of a treatment<br />
and preventative regime for the following conditions:<br />
diverticulitis, constipation, colon cancer, heart disease,<br />
obesity, gall stones, varicose veins and irritable bowel<br />
syndrome.
34 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Probf otfcs<br />
It is ironic that while spending countless dollars and<br />
hours ridding ourselves and our homes of germs, there<br />
resides literally biions of the blighters <strong>with</strong>in our<br />
bodies. There are more bugs in the bowel than there<br />
are cells in the body. Such bugs are,collectively known<br />
as bowel microflora and the beneficial ones are called<br />
pro bio tics.<br />
At last count there were 100 trillion bacteria in the<br />
digestive tract weighing in at 1.5 kilograms.<br />
Thirty per cent of faecal weight is bacteria.<br />
In each M tre of saliva there are 10 000 bacteria.<br />
The stomach has 10 000 bacteria per millilitre, less<br />
than elsewhere in the gastrointestinal tract due to the<br />
presence of hydrochloric acid and pepsin.<br />
The small intestine: the duodenum has 10 000 bacteria<br />
per Mtre; and the ileum has 10 million per<br />
miIlilitre.<br />
The large intestine has 100 billion to 1000 billion bacteria<br />
per milIilitre.<br />
No doubt these internal interlopers are splitting their<br />
little sides <strong>with</strong> laughter as they watch us rub our hands<br />
raw <strong>with</strong> disinfectant soap. How they must chortle when<br />
we pay good money to buy encapsulated bacteria in<br />
bottles at health food stores and pharmacies.<br />
Mannerly duoflora<br />
Before you guzzle down that bottle of Dettol in an<br />
attempt to terminate their tiny lives, you must know that<br />
in return for accommodation, certain of these little folk<br />
go out of their way to provide us <strong>with</strong> substances beneficial<br />
to our welfare.<br />
These rather small bugs have rather large names.
Carbohydrates: Fzcel and Fibre 35<br />
!<br />
Some of the more famous beneficial microbes include<br />
Lactobacillus acidophilus (acidophilus) found in the<br />
stomach and small intestine, Biiidobacterium biiidm<br />
(bifidus) found in the lower reaches of the bowel, Lactobacillus<br />
bulgaricus, Lactobacillus brevis and Streptococcus<br />
thermophilus who are all transients, which mean<br />
they do good deeds then go.<br />
Certain strains of microflora are capable of producing<br />
the B vitamins biotin, niacin (B3), pyridoxine (B6), folic<br />
acid (B9), as well as vitamin K. Others act as watchdogs<br />
of the internal environment, secreting substances which<br />
promote the growth of beneficial microorganisms and<br />
substances toxic to pathogenic bacteria and viruses.<br />
Others produce lactase, an enzyme that helps digestion<br />
of milk sugar. Conditions including acne, constipation,<br />
psoriasis, bloating, flatulence, even tumours can<br />
respond positively to the substances created by these<br />
microorganisms.<br />
Tipping the balance<br />
Convinced yet these guys are paying their way? Microflora<br />
five in a finely balanced world where any change,<br />
however minor, is likely to tip the balance. This is a state<br />
of dysbiosis. Such changes can include constipation,<br />
irritable bowel syndrome, diarrhoea, abdominal X-rays,<br />
radiotherapy, a serious infection, a sudden change in<br />
diet, stress, the contraceptive pill, drinking tap water<br />
containing chlorine (chlorine is antimicrobial), steroids<br />
such as cortisone and taking antibiotics. Antibiotics are<br />
designed to kill bacteria - killing the good along <strong>with</strong> the<br />
bad. After a course of antibiotics, or if any of the above<br />
situations apply, then it is wise to go on a short program<br />
of friendly bacteria, such as acidophilus and bifidus. This<br />
will help reinstate healthy microflora.
36 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
A diet which promotes healthy microflora includes<br />
whole grains, vegetables, legumes, fruit, miso and plain<br />
yoghurt made <strong>with</strong> acidophilus, bulgaricus or bifidus<br />
culture.<br />
I
Protein:<br />
Strength and Structure<br />
Look in the mirror - what you see is protein<br />
Protein comes from the ancient Greek word protos, meaning<br />
first. Long thought to be the most important or primary nutrient,<br />
nowadays we acknowledge protein's significance but also<br />
recognise the equal importance of carbohydrates and fat.<br />
Protein provides our physical structure. Pretty much all that<br />
you see in the mirror - hair, skin, nails, as well as muscle and<br />
even bone - is predominantly protein. Just as protein creates<br />
most of our macrostructure, so too is it vital for microstructures;<br />
the miniature nuts and bolts that keep us ticking over. All<br />
enzymes, neurotransmitters, blood proteins such as haemoglobin,<br />
antibodies and many hormones are made out of protein.<br />
No other nutrient will do; if there is no protein these macroand<br />
microstructures cannot be built. People whose diets are<br />
low in protein often suffer symptoms ranging from brittle hair<br />
and nails, poor immune function and delayed healing to muscle<br />
weakness. More severe protein deficiency eventually leads to<br />
to blindness, oedema, muscle wasting and death.
38 TZie Commonsense Gaide to <strong>Eating</strong> <strong>Well</strong><br />
Kwashiorkor<br />
Kwashiorkor is the name given to severe protein deficiency.<br />
African in origin, kwashiorkor literally means<br />
'disease of the first born when the second baby is put<br />
on the breast': a terribly sad reality where the only<br />
protein available is through the mother's milk. An ironic<br />
symptom of kwashiorkor is a swollen belly. This is<br />
because the blood protein albumin retains water <strong>with</strong>in<br />
blood vessels. Without enough protein there is insufficient<br />
albumin and so water leaks from the blood vessels<br />
and swells the abdomen.<br />
Protein can also provide us <strong>with</strong> calories for energy - 4 calories<br />
a gram (the same as carbohydrate). However, as neither<br />
carbohydrate nor fat provide us <strong>with</strong> the structural building<br />
blocks that protein supplies, using protein for energy is a tad<br />
wasteful.<br />
How much is enough?<br />
Unlike fat, protein cannot be stored in the body and so it is<br />
imperative that we eat enough protein each day to rebuild<br />
and repair muscles, enzymes, fingernails and eyelashes. If the<br />
body does not receive adequate protein from the diet every<br />
day, it will procure it somehow, usually by breaking down<br />
muscle tissue. So it is of no use to go on a protein binge one<br />
day a week, hoping that on average your protein intake is<br />
sufficient. The generally accepted recommendation for daily<br />
protein to keep us out of trouble is 1 gram per body kilogram.<br />
For instance, a 60 kilogram person requires 60 grams of<br />
protein a day. Roughly the same weight as a good-sized egg
Protein: Strength and Structure 39<br />
(although a 60 gram egg contains only 8 grams of protein, the<br />
rest being carbohydrate, fat and water).<br />
Who needs extra?<br />
During pregnancy an extra 6 grams of protein is required<br />
daily to meet the structural needs of the growing baby.<br />
Breastfeeding a baby requires that you eat an extra 12 to 16<br />
grams of protein daily. Children need proportionately double<br />
the protein an adult needs, due to the need to increase body<br />
structure. A growing child needs up to 2 grams per body<br />
kilogram. So a 30 kilogram child would need as much protein<br />
as a 60 kilogram adult; that is, 60 grams.<br />
Some body builders keen to be chiselled, cut and sculpted<br />
eat protein by the bucketload (12 egg whites for breakfast),<br />
although our body's capacity to build muscle is limited to our<br />
genetic potential. Excess protein will be used as calories or<br />
stored as fat and may eventually lead to problems <strong>with</strong> the<br />
liver and kidneys.<br />
The problem <strong>with</strong> excess protein<br />
Protein, unlike carbohydrate and fat, contains nitrogen.<br />
We lose about 30 grams of nitrogen in the general<br />
house-cleaning and maintenance that goes on in the<br />
body every day. The liver converts the nitrogen into<br />
ammonia and then urea, which the kidneys excrete via<br />
the urine. Normally, the body copes <strong>with</strong> this amount<br />
of waste nitrogen. The trouble starts when excess<br />
protein (more than double our requirements) is consumed<br />
(remember, we cannot store excess protein).<br />
The ammonia and urea are toxic and can cause<br />
damage, especially to the kidneys.
40 The Commonsense Guide to <strong>Eating</strong> Wedl<br />
Amino acids: the Lego blocks of life<br />
Protein is made up of lots of little units called amino acids.<br />
There are about 100 amino acids in nature and over 20 in the<br />
human body (see box below). Just like Lego blocks, amino<br />
acids can join together into all sorts of shapes but most often<br />
form chains, joined together by peptide bonds. These chains<br />
can grow quite long, up to hundreds of amino acids in a row,<br />
and the chains can cross and link <strong>with</strong> one another to form<br />
complex structures.<br />
Although an eyelash looks quite different from a toenail<br />
(one hopes), nearly all body structures are made up of protein.<br />
They look different because they contain different variations<br />
of the 20 amino acids, making an infinite number of combinations.<br />
It is the type of amino acids and their combination<br />
in the polypeptide chain, that determine the function and<br />
look of a particular protein.<br />
EM: all or nothing at all<br />
Our body needs all 20 amino acids to make the different<br />
proteins essential for life. When necessary, the body can<br />
create a new amino acid out of an old one. A bit of a cut and<br />
paste job: tack on a few carbons here, take away a few<br />
hydrogens there. Pretty clever stuff. However, there are a few<br />
amino acids that cannot be created from others. Known as the<br />
essential amino acids (EAAs), these amino acids must be<br />
eaten daily. As mentioned previously, we need 1 gram of<br />
protein per body kilogram, and that protein must be of good<br />
quality. Good quality doesn't necessarily mean it comes from<br />
David Jones, but food that delivers all the essential amino<br />
acids.
Protein: Strength and Structure 41<br />
Some people still believe that good quality protein must<br />
Amino adds in the body<br />
Alanine (Ala)<br />
Arginine (Arg)<br />
Asparagine (Asn)<br />
Aspartic acid (Asp)<br />
Cysteine (Cys)<br />
Glutamic acid (Glu)<br />
Glutamine (Gln)<br />
Glydne (Gly)<br />
Histidine (His) *<br />
Isoleuane (IIe)*<br />
Leucine (Leu) *<br />
Lysine (Lys) *<br />
Methionine (Met)*<br />
Phenylalanine (Phe) *<br />
Proline (Pro)<br />
Serine (Ser)<br />
Threonine (Thr) *<br />
Tryptophan (Try)*<br />
Tyrosine (Tyr)<br />
Valine (Val)*<br />
*means an essential amino acid<br />
come from meat. Meat does contain all the essential amino<br />
acids, however, if you cleverly combine foods such as beans<br />
and grains (see page 44) they will provide you <strong>with</strong> all the<br />
essential amino acids. The truth is that when tryptophan is<br />
needed for toenail manufacture it doesn't matter whether the<br />
tryptophan came from a peanut or a cow.<br />
For many years non meat-eaters were depicted as pasty
42 The Commonsense Gzcide to <strong>Eating</strong> <strong>Well</strong><br />
and anaemic <strong>with</strong> a predilection towards communist philosophies.<br />
However, it soon became apparent that vegetarians<br />
were a defiantly healthy mob. Studies on Seventh Day<br />
Adventists show they suffer less obesity, heart disease,<br />
cancer, diabetes and virtually every other modern-day illness.<br />
And they live longer to enjoy it. The vegetarian diet generally<br />
is higher in fibre and lower in fat.<br />
Formerly, it was believed that all the essential amino acids<br />
needed to be eaten at the same meal. Now we know there<br />
is some leeway. If you eat a food low in one of the amino<br />
acids for breakfast, as long as you eat a food that contains a<br />
reasonable amount of this amino acid sometime in the next<br />
12 hours or so all will be well.<br />
Recipe for success and toenails: the art of<br />
protein synthesis<br />
How the body knows which protein to make, and when,<br />
is coded in genes on strands of DNA located in the<br />
nucleus of nearly all cells. There is information (recipes)<br />
on every aspect of us in these wispy threads of genetic<br />
material. When we need to grow a toenail, the recipe<br />
we need will be located at a particular point on the DNA<br />
strand - called a gene. If a toenail is required, only that<br />
recipe will be accessed, however tempting that vanilla<br />
soume recipe is on the next gene.<br />
First a copy of the recipe is made (messenger RNA) in<br />
the nucleus and is taken downstairs to the kitchen (cytoplasm).<br />
The recipe is very specific as to which amino acids<br />
go where, causing them to line up in a specific sequence<br />
to form our peptide chain (for example, Ser-Ser-Gly-Leu-<br />
Asn-Met-Met-Gln-Pro-Trp and so on). As each consecutive<br />
amino acid is needed for the recipe, a call goes out<br />
on the public announcement system for that amino
Protein: StrengfA and Stmctzcn 43<br />
acid - for example, serine (a non-essential amino acid) -<br />
to come forth. If there happens to be a serine in the near<br />
vicinity, it will step into line. If no serine is around, a suitable<br />
candidate wiII front up and sacrifice itself to a total<br />
makeover, becoming transformed into serine. In the event<br />
that an essential amino acid like tryptophan is needed,<br />
the call will go out on the PA system as before. If no<br />
tryptophan turns up, another more desperate call will be<br />
made. If still no tryptophan appears, we are in big<br />
trouble - the aforementioned toenail cannot be made.<br />
This may sound like good news (no more nail clippings<br />
on the carpet), however, if there is no tryptophan for toenails<br />
there will be no tryptophan for skin, muscle and<br />
enzymes. We need to have the essential amino acids on<br />
hand 24 hours a day or all protein making goes on strike.<br />
This is why it is crucial to our well-being to ensure that<br />
every day we eat enough protein containing all the essential<br />
amino acids.<br />
Are you getting enough?<br />
When I analyse people's diets, one of the most frequent deficiencies<br />
is protein. A good example is Michelle. Aged 28,<br />
Michelle has a busy life: a successful job in marketing, good<br />
friends and a membership to the gym which she visits daily<br />
because she thinks she has fat thighs. (She doesn't.) Michelle's<br />
main reason for seeing me was her lack of energy. When<br />
questioned, her energy levels had been low for a few years,<br />
and steadily getting worse. I always ask for people to measure<br />
their energy levels according to a scale of 0 to10 <strong>with</strong> 10 being<br />
'jumping full of beans'. Michelle was a very weary 4 to 5<br />
on the energy scale. Within two weeks of eating a diet that
44 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
contained more protein, Michelle's energy levels had lifted<br />
to 8 or 9. It is often this simple.<br />
Part of the problem was that Michelle simply did not know<br />
what foods contain protein. When I suggested that protein<br />
may be the answer, she agreed to try this novel approach but<br />
was worried about putting on weight. (Those thighs again.)<br />
So I gave her a list of protein foods that were relatively low<br />
in fat and asked Michelle to have one serve <strong>with</strong> each meal.<br />
The list of high proteinllow fat foods was tuna in brine,<br />
sardines in brine, egg, low-fat humus, low-fat ricotta, cottage<br />
cheese, lean red meat, chicken <strong>with</strong>out the skin, 10 almonds,<br />
kidney beans, tofu, low fat yoghurt.<br />
Clever vegetarianism: protein combining<br />
Animal-made protein more closely reflects the human requirements<br />
of essential amino acids, <strong>with</strong> eggs carrying the<br />
prize for the most 'complete' protein. (Remember, the total<br />
amount of protein in the average egg is 8 grams, which would<br />
mean you would need to eat eight eggs a day if you were<br />
only getting protein from this source.)<br />
Generally if you are happy to eat some animal products -<br />
for example, cheese, yoghurt, eggs, fish, chicken, beef, lamb<br />
and so on - you don't need to be too conscious of worrying<br />
about the essential amino acids.<br />
Nearly 30 years on, the landmark book Diet for a SmaN<br />
Planet by France Moore Lappe (first published in 1971) is<br />
still the best book on the subject of protein in vegetarian<br />
food. Lappe was a card-carrying member of the flower-power<br />
generation who were vegetarian for various political and<br />
ethical reasons. Fed up <strong>with</strong> people saying she would die of<br />
protein deficiency if she didn't eat meat, Lappe did her<br />
homework and found that by combining certain plant foods
Protein: StrengtA and Stmctu~e 45<br />
you would obtain all the necessary essential amino acids.<br />
Beans, grains, nuts and seeds have the most essential<br />
amino acids, while fruits and vegetables (except sprouts) tend<br />
to be a write-off when it comes to protein. Plant proteins, not<br />
surprisingly, don't reflect the human range of amino acids,<br />
although soybeans come surprisingly close. Beans lack the<br />
essential amino acids that grains have in spades and vice<br />
versa.<br />
Lappe drew parallels <strong>with</strong> the world's major cuisines,<br />
which happen to be predominantly vegetarian, noticing that<br />
for centuries people have been combining plant foods so as<br />
to take full advantage of complementary amino acids. For<br />
example, the South Indian dish of dhal and rice combines<br />
lentils, a legume, <strong>with</strong> rice, a grain. The Asian meal of tofu<br />
and rice combines tofu made from soybeans, a legume, <strong>with</strong><br />
rice, a grain. (Soybeans have the highest protein of any<br />
legume.) Central Americans combine red or kidney beans, a<br />
legume, <strong>with</strong> tortillas made from corn, a grain. In Lebanon,<br />
the felafel roll combines felafel made from chickpeas, a bean,<br />
<strong>with</strong> flat bread made from wheat, a grain. You can add substantially<br />
to protein levels by throwing in a few toasted sunflower<br />
seeds, sprouts or sesame seeds, which will add a few<br />
more essential amino acids. Of course if you add a small<br />
amount of animal protein to your vegetarian meal, including<br />
some grated cheese, a dollop of natural yoghurt or even a<br />
small amount of meat, you will have no worries about getting<br />
sufficient protein.
Fat: Not a Dirty Word<br />
Fat the Rat<br />
It is amazing how three little letters F, A and T can send<br />
people into paroxysms of fear and loathing. After all, it is just<br />
a nutrient and a rather valuable one at that. No other nutrient<br />
gives us the fat soluble vitamins A, D, E and K; or sterols<br />
such as cholesterol, oestrogen, testosterone, aldosterone and<br />
cortisol; let alone the phospholipids that line the outside of<br />
nerves and create part of each cell membrane; or the<br />
prostaglandins - chappies that have a profound impact on our<br />
health. One can expect only so much from carbohydrates and<br />
protein: only fat delivers these beauties.<br />
The official name for fat is 'lipid', which refers to the more<br />
solid fat as well as its liquid counterpart, oil.<br />
Getting to know you<br />
Ninety-nine per cent of fat in the body and in food is in the<br />
form of triglycerides, which are basically three (hence the 'tri')
Fat: Not a Diw Word 17<br />
chains of fatty acids joined together at one end. A fatty acid<br />
(the basic unit of fat) is a chain of carbons extending in length<br />
anywhere from 2 to 22 carbons long. There are short-, mediumand<br />
long-chain fatty acids, depending on how many carbons<br />
are present.<br />
bonds fhd hk tk<br />
(dce $he<br />
glucose moleculeS - humaq~ do not- possess<br />
the enzymes .to b d Ynese bonds<br />
- ~ h is ~ w l M kgeEt Cik )<br />
When scientists classify fatty acids, they don't just call<br />
them Bobby-joe or Charlie. They name them according<br />
to the number of carbons, how many double bonds and<br />
where the first double bond is positioned. For example,<br />
EPA is 20:5w3. This means it has 20 carbons, five<br />
double bonds <strong>with</strong> the first double bond occurring on<br />
the third carbon from the end, which also makes it an<br />
omega3 fatty acid.
48 TAe Commonsense Gzkide to Eahag WeZZ<br />
I0leic. acid (18: 1 ~9)<br />
H H H H H H H H H H r ; i H Y H H F I H H 0<br />
1 I I I I I I I I r 1 1 1 1 r 14<br />
If- c-C-C-c-C- C-C-C-C = C-C-C-C-C-C-C-C-c<br />
I I I I I I I I ~ I I I 1 J 'On<br />
ll H H H H H H H N U U H f l H H<br />
I<br />
~'EIC ACID (I$: I c 9) is IS arbo on^ long, drub4<br />
+he ninth carbon . olei~ atid (commonly found in olive oil) is q<br />
mno-u/rsohmd faHy acid, as it ha only one (mmo) double bmd .<br />
(Fblyvnsahted Fatfy ads ha@ hue w m e dwbk badr.)<br />
Saturated Fatty Unsaturated Fatty<br />
Acids<br />
Adds<br />
Butyric Acid 4:O Palmitoleic Acid 16: lw7<br />
Caproic Acid 6:O Oleic Acid 18: lw9<br />
Caprylic Acid 6:O Linoleic Acid 18:2w6<br />
Capric Acid 10:O Alpha-linolenic Acid 18:3w3<br />
Lauric Acid 12: 0 Gamma-linolenic Acid 18:3w6<br />
Myristic Acid 14:O Arachidonic Acid 20:4w6<br />
Palmitic Acid 16:O Seearidonic Acid 18:4w3<br />
Stearic Acid 18:O Eicoapentaenoic Acid 20:5w3<br />
Arachidic Acid 20:O Docosahexaenoic Acid 22:6w3<br />
Table adapted from U. Erasrnzrs, 1993<br />
Saturated and unsaturated fatty acids<br />
The fatty acid chain looks like a daisy chain. The daisy flower<br />
being the carbon, while the stalk represents the bond. Sometimes<br />
there are two bonds (double bond) joining the carbon
Fat: Not a Dirty Word 49<br />
atoms together. A double bond is not as stable as a single<br />
bond; there is a likelihood that one of the bonds will reach<br />
out and grab something else - for instance, oxygen. If there<br />
are no double bonds, the fatty acid is called a saturated fatty<br />
acid. Like a sponge fully saturated <strong>with</strong> water, there is no<br />
opportunity for those bonds to hold on to anything else. If<br />
there are any double bonds it is known as an unsaturated fatty<br />
acid. Two or more double bonds make it a polyunsaturated<br />
fatty acid ('poly' meaning many).<br />
Nattering on about the structure of carbon chains and<br />
double bonds is all very well if you happen to be looking<br />
down an electron microscope, however, there is an easier way<br />
to identify saturated from unsaturated fats just by looking at<br />
them. The more unsaturated a fat - that is, the greater the<br />
number of double bonds - the more liquid it appears. This<br />
means that the more solid fats such as butter and lard contain<br />
more saturated fatty acids; whereas the runnier oils like<br />
safflower and sunflower have three and four double bonds<br />
apiece. Then you have your 'in-between' oils such as olive<br />
oil, which is liquid until put in the fridge where it gets claggy.<br />
This is because olive oil (and canola oil) contains monounsaturated<br />
fatty acids, which means there is only one double<br />
bond (mono): not as liquid as polyunsaturated and not as hard<br />
as saturated fats. I am sure there is a more scientific way to<br />
explain this, but there you go.<br />
Fats and oils are made up of several types of fatty acids,<br />
not just one. The different fatty acids will determine how<br />
saturated or unsaturated a fat is. For instance, butter is predominantly<br />
saturated and contains a lot of the saturated fatty<br />
acid butyric acid. Nevertheless, butter will also contain a few<br />
unsaturated fatty acids as well.
50 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Better to be a peroxide blonde than a peroxide<br />
polyunsaturate<br />
Polyunsaturated fatty acids (those <strong>with</strong> two or more double<br />
bonds to their name) have a very fragile chemical structure.<br />
Anything that interferes <strong>with</strong> that double bond, including<br />
heat, light and other chemicals, can cause that fatty acid to<br />
become peroxidated - that is, an oxygen molecule is incorporated<br />
into the structure. This is bad, bad news. This lipid<br />
peroxide is capable of causing free radical damage to its<br />
immediate surroundings, be it a cell membrane or anything<br />
else. This process is considered to be a trigger in many diseases<br />
including cancer and atherosclerosis. The dodgy lipid,<br />
once incorporated into the body, then wreaks havoc unless<br />
there are suitable defenders available, namely the antioxidants.<br />
Vitamin E is a lipid-soluble antioxidant and should<br />
be liberally scattered through all our cell membranes.<br />
Fat and fabulous<br />
Fat is the nutritional equivalent of Louis Vuitton luggage:<br />
you can fit so much in! Each gram of fat supplies us <strong>with</strong><br />
nine calories of energy, whereas carbohydrate and protein<br />
give us four calories a piece. This means, for weight and size,<br />
fat is a very economical form of storage. Mountain climbers<br />
and trekkers who want to travel light carry food high in fat,<br />
like chocolate and halvah, to provide them <strong>with</strong> more energy<br />
gram for gram. If our bodies were to store the equivalent<br />
amount of energy in the form of carbohydrate, instead of fat,<br />
we would be the size of a big tree. In fact, trees and other<br />
plants do happen to store their energy as carbohydrate.<br />
The average 60 kilogram person has about 15 kilograms<br />
of fat. There are 135 000 calories of stored energy in 15
Fat.. Not a Dim Word 51<br />
Trans and ds fatty adds<br />
Wherever there is a double bond, the chain of carbons<br />
wilI tend to bend at this place. Nine times out of ten,<br />
the ends of the chain will fold in towards each other,<br />
like the letter 'C'. This transfiguration is called 'cis'. Occasionally<br />
another formation occurs, where the chain continues<br />
on the opposite side of the double bond - this is<br />
called a trans fatty acid. Although rare in nature, trans<br />
fatty acids occur frequently during the processing of fats<br />
for cooking oil and margarines. Recent information has<br />
revealed that these trans fatty acids are bad for our<br />
health.<br />
For a start, although they are initally accepted by<br />
the digestive system, when they are incorporated at a<br />
cellular level, they cause all sorts of trouble. Trouble like<br />
causing the blood to be stickier, a risk factor in heart<br />
disease; decreased testosterone levels; and lower<br />
immune response.<br />
kilograms of fat (15 000 grams x 9 calories). If the average<br />
person needs 2000 calories a day, this means there is over<br />
nine weeks of available energy from fat. This thriftiness has<br />
probably saved the human race from extinction time and time<br />
again. My darling father used to tell me it was a good thing<br />
to carry a little padding to fall back on if you got sick. Speaking<br />
of falling back on, fat makes a wonderful insulation layer<br />
between the outside world and you. Which is why women<br />
have an extra layer covering the womb (mind you, this does<br />
not explain the extra layer covering the thighs). In these days<br />
of paranoia about being thin as a stick, we forget the value<br />
of a little extra padding. Thanks Dad.
52 The Commonsense Gzside to <strong>Eating</strong> Web<br />
Fat tastes fabulous<br />
Truthfully now, what tastes better: a bowl of steamed vegies,<br />
or a bowl of steamed vegies <strong>with</strong> a pat of butter melted<br />
through? Exactly. Carrots taste carottier, potatoes more<br />
potatoey, because fat releases smell and taste chemicals in<br />
the food. A fact that fast food outlets cottoned on to decades<br />
ago. An interesting study on American nut-eaters showed that<br />
they were less overweight than their non nut-eating compatriots!<br />
This could be due to the fact that a few nuts make<br />
you feel pretty full, fuller than an ice cream for instance,<br />
which contains the same calories.<br />
The tragedy of processed oils<br />
Before the dawn of the potato chip, we lived in a world where<br />
any fat we ate was part of, not added to, food. Stone Age man<br />
did not go to the back of the cave and bring out a jar of<br />
mayonnaise for the cycad sprouts, or a slender bottle of olive<br />
oil to drizzle over the barbecued bronto-rib.<br />
Because fat is susceptible to light and heat, nature has<br />
evolved some ingenious solutions. For example, nuts are a highfat<br />
food and they always have a hard covering that protects the<br />
fat from light. The high-fat macadamia has the hardest shell<br />
of all. The avocado is one of the few fruits that store energy<br />
in the form of fat; it has a dark, leathery skin that protects the<br />
fatty acids from oxidation. Until relatively recently we did not<br />
have the technology to obtain fat from food. The earliest<br />
attempts would have been stone-pressed olive oil and, in cooler<br />
climates, butter from churning cream. Both these fats are at<br />
less risk of becoming oxidised because they are monounsaturated<br />
and saturated respectively (fewer double bonds to worry<br />
about). Historically, fat has been a luxury food, available only
Fat: Not a Dirty Word 53<br />
to the wealthy until modern-day improved food technology.<br />
Today, oil is cheap and readily available on supermarket<br />
shelves in clear plastic bottles, baring all their little unprotected<br />
double bonds to the ubiquitous fluorescent lights.<br />
EPO and UFOs: the story of essential fatty<br />
acids<br />
I was fine <strong>with</strong> the UK. Even the USA posed no threat. Then<br />
there was UNICEF, ANZUS and eventually KFC. I could<br />
cope. But it was only when the world of initials (or acronyms)<br />
struck oil that I realised that the New Age had finally gone<br />
Space Age.<br />
More than any other field of nutrition, research into lipids<br />
(fats or oils) has flourished in recent years. Many people are<br />
aware of the benefits of EPO and EPA. Some know the<br />
importance of a high percentage of GLA. Yet, how many of<br />
us understand what the heck these initials stand for? And<br />
what exactly is so good about them?<br />
Fatty acids are the building blocks of fats. There are many<br />
different fatty acids - for example, oleic acid (OA) found in<br />
olive oil and butyric acid (BA) found in butter. Linoleic acid<br />
(LA) and alpha-linolenic acid (LNA) are known as the essential<br />
fatty acids (EFAs), because of the fact that we cannot do<br />
<strong>with</strong>out them. They are essential to health. I guess that must<br />
make them VIP EFAs! It is these EFAs and their derivatives<br />
that have spectacular health benefits.<br />
Prostaglandins<br />
In the body, EFAs can be transformed into biologically active<br />
substances known as prostaglandins. The study of prostaglandins<br />
(PGs, wouldn't you know) is very new and very exciting.
54 The Commonsense Ggide to <strong>Eating</strong> Weld<br />
The prostaglandins derived from LA and LNA, our EFAs,<br />
keep blood platelets from sticking together, preventing heart<br />
attacks and strokes. They also prevent fluid retention and<br />
decrease the inflammation response, thereby helping <strong>with</strong><br />
menstrual cramps, eczema and arthritis. In addition, they<br />
improve the functioning of our immune system's T-cells, so<br />
important in the fight against infection. Regulating hormones<br />
is another key area, helpful for PMS, menopause, hormonal<br />
headaches and acne.<br />
We are able to make these valuable prostaglandins from<br />
EFAs (LA and LNA) in food. However, the average diet is<br />
sadly lacking in good quality EFAs derived from seeds, whole<br />
grains, leafy green vegetables, cold-pressed oils and fish.<br />
In addition, although our bodies are capable of producing the<br />
prostaglandins from the EFAs, many people have trouble <strong>with</strong><br />
the first step. As in most biochemical processes, each step<br />
requires an enzyme. Enzymes are sensitive little characters,<br />
often requiring the support of vitamins and minerals - in this<br />
case, vitamin B6, zinc, magnesium and vitamin C - some of<br />
which are deficient in the modern diet. Factors that inhibit this<br />
enzyme include processed fats such as margarine, alcohol, radiation,<br />
aspirin, stress and a high-sugar diet.<br />
Mysterious substance X<br />
The answer is simple. By eliminating the first step and taking<br />
the substance that would normally be produced if our enzyme<br />
was firing on all cylinders, we will conveniently by-pass the<br />
problem. Let's call this substance 'substance X'. Substance<br />
X has no difficulty in transforming into prostaglandins.<br />
Just who or what is substance X? None other than gammalinolenic<br />
acid (GLA), found in evening primrose oil and
Fat: Not a D iq Word 55<br />
eicosapentaenoic acid (EPA) commonly found in fish and linseeds:<br />
GLA and EPA are the substances produced after the<br />
first step. Many people find that supplementing their diet<br />
<strong>with</strong> evening primrose oil (containing GLA) and EPA provides<br />
the key to good health. They help to treat and prevent<br />
conditions such as eczema, acne, headaches, PMS, hormonal<br />
irregularities, cancer, heart disease and so on. A combination<br />
of the two is thought to be preferable to one in isolation. Of<br />
course we should increase our consumption of EFA-rich<br />
foods - including linseeds, sunflower and sesame seeds, soy,<br />
walnuts, dark green leafy vegies, fish and whole grains - in<br />
addition to helping that errant enzyme by taking foods or<br />
supplements <strong>with</strong> the appropriate co-enzyme.<br />
Good cholesterol and LPs: the tmth about<br />
what happened to those 12-inch vinyls<br />
Fat and water don't mix. Fat tends to glob together in a<br />
blob when it is immersed in water. Blood is 99 per cent<br />
water and the major transport system of the body, so a<br />
solution had to be found to this fatlwater incompatabiiity.<br />
LPs are the answer. Not the 12 inch vinyl variety,<br />
these LPs (lipoproteins) are fat transport vehicles. Lined<br />
<strong>with</strong> a coating of protein, which is water soluble, lipoproteins<br />
contain a variety of fatty substances including<br />
triglycerides, cholesterol, phospholipids, hormones and<br />
fat-soluble vitamins.<br />
It depends on the proportions of its cargo whether a<br />
lipoprotein is high or low density. As protein has more<br />
density than fat, the less fat a lipoprotein contains, the<br />
higher its density.
56 The Commonsense Gzcide to <strong>Eating</strong> <strong>Well</strong><br />
CHnOMICRON This is the lowest density lipoprotein<br />
of all. It is diet-derived LP that travels<br />
from the intestine to the liver aAer<br />
digestion. Chylornicrons ferry fat to<br />
the tissues before its arrival in the liver.<br />
VLDL Very Low Density Lipoprotein. This<br />
contains mostly triglycerides and will<br />
be converted to LDL.<br />
LDL<br />
Low Density Lipoprotein. LDLs contain<br />
the most cholesterol of all the low<br />
density group. They are responsible<br />
for distributing choIestero1 and other<br />
fats throughout the body.<br />
HDL High Density Lipoprotein. This contains<br />
the most protein and hence, has<br />
the highest density of all the LPs. It is<br />
capable of returning cholesterol from<br />
the blood vessels to the liver. The liver<br />
will then produce bile acids from any<br />
excess choIesteroI.<br />
The greater the ratio of HDLs to LDLs the better. When<br />
we get our cholesterol 'done', a reading of total cholesterol<br />
is given. This is the choIesteroI found in all the LPs.<br />
If this is high, then a further reading will be necessary<br />
to determine whether the cholesterol is 'good' or 'bad'.<br />
The cholestero1 itself doesn't change, it is whether the<br />
ratio of HDLs is high relative to the LDLs.<br />
Cholesterol: nightmare or blessing?<br />
Cholesterol is the Jack Nicholson of the nutrition world. Constantly<br />
being given the role of the bad, crazy guy. I can't
Fat: Not a Dim Word 57<br />
vouch for Jack, but cholesterol has some very positive traits.<br />
It is the precursor of bile (the fat-digesting secretion of the<br />
liver), oestrogen, progesterone, testosterone, cortisol and<br />
vitamin D. Cholesterol is an integral component of every cell<br />
membrane and forms part of the myelin sheath around nerve<br />
fibres. The alarm was initially raised when cholesterol was<br />
found in artery blockages. However, cholesterol in the arteries<br />
is just a sign, not the cause. Blaming cholesterol for heart<br />
disease is like shooting the messenger.<br />
Cholesterol occurs in animal foods such as chicken, eggs,<br />
lamb, beef, milk, cheese and pork. It is a type of fat manufactured<br />
in the liver. We make our own cholesterol, as well as<br />
consuming cholesterol from the food we eat. You will not find<br />
cholesterol in plant foods, even those containing fat such as<br />
avocados and coconuts, as they do not have livers. The amount<br />
of blood cholesterol usually stays constant: the liver makes less<br />
if we consume more and vice versa.<br />
'High' cholesterol means higher than normal levels of cholesterol<br />
in the bloodstream. High cholesterol is a risk factor for<br />
atherosclerosis, a common heart disease. More important than<br />
cholesterol levels is the ratio between the high density lipoproteins<br />
(HDLs) and low density lipoproteins (LDLs): the<br />
higher the ratio of HDLs to LDLs, the lower the risk of heart<br />
disease. As mentioned previously, LDL's job is to deposit fats,<br />
including cholesterol, throughout the body and on the insides<br />
of blood vessel walls. HDLs, on the other hand, are capable of<br />
mopping up excess cholesterol from blood vessel walls and<br />
taking it back to the liver to be made into bile or one of the<br />
other useful products that can be made from cholesterol.<br />
A healthy diet and lifestyle will help you maintain an enviable<br />
blood fat profile; that is, lowish levels of triglycerides,<br />
moderate cholesterol, <strong>with</strong> a good HDLILDL ratio (see the<br />
tailor-made diet for a healthy heart on page 219).
58 The Commonsense Gaide to <strong>Eating</strong> <strong>Well</strong><br />
Some slick answers to an oily problem<br />
Fat is important to keep us healthy, our fur shiny and our<br />
noses dry, although too much fat is a problem, as is the wrong<br />
type of fat.<br />
Enter Nathan Pritikin. During the 1970s, Pritikin was the<br />
first to popularise the low-fat diet and lifestyle that proved<br />
to be so effective in reducing heart disease, one of the biggest<br />
killers in the Western world. Since then, however, it seems<br />
that there is more to the story than just the quantity of fat<br />
consumed. Take the Mediterranean diet, which is liberally<br />
laced <strong>with</strong> olive oil, yet friendly for the heart. The Innuit or<br />
Eskimos' traditional cuisine of whale blubber and fish is also<br />
protective against heart disease. Now we know that it is not<br />
just how much fat, but the type of fat that affects our health.<br />
And not only heart disease. The type of fat we consume<br />
influences the outcome of conditions as diverse as arthritis,<br />
eczema, PMS and cancer.<br />
The primary rule is don't add fat. If you have the choice<br />
to add mayonnaise, sauces, dressing, cream, butter or<br />
margarine - don't do it. Other principles to follow are: buy<br />
only cold-pressed oils; if you want to spread something on<br />
your bread, choose a thin scrape of avocado, tahini, ricotta or<br />
hommos; never buy or eat margarine if you can avoid it; read<br />
labels to identify how much fat and what kind it is; and steer<br />
clear of deep-fried anything, particularly cats.<br />
Fat should comprise no more than 30 per cent of our diet.<br />
For the average person, this works out to be about 65 grams.<br />
It is a worthwhile exercise to buy a small 'fat counter' book<br />
and tote up the number of grams of fat you eat each day. You<br />
might be surprised where fat hides. Don't become obsessed<br />
<strong>with</strong> the fat counter. Use it for information, not to beat yourself<br />
up <strong>with</strong>.
Water: The Most<br />
Important Nutrient<br />
Water is the most important nutrient of all. We can live<br />
<strong>with</strong>out food for weeks if need be, but if deprived of water<br />
for more than a day or so, we will surely die. Water is often<br />
the only remedy required for conditions as varied as constipation,<br />
headaches, dry skin and fatigue.<br />
We excrete about 2 to 3 litres of water daily: 1.5 litres via<br />
the urine, 1 litre via sweat and breath and around 100 millilitres<br />
in poo. Water comprises 60 to 70 per cent of our body<br />
weight. It is in the blood, in between and inside cells. Even<br />
bones are 25 per cent water, teeth 10 per cent. We need to<br />
restore what is lost. In addition to the water in food, try to<br />
drink an extra 1 to 2 litres of pure water each day.<br />
It's wet, what else?<br />
Apart from keeping us alive, water has several less obvious<br />
roles in the body:
60 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
In the same way as the ocean moderates coastal temperatures<br />
because it takes longer for water to cool and heat than<br />
does land, our body's water helps us to regulate body<br />
temperature.<br />
Nutrients and waste products, hormones and neurotransmitters<br />
all need to be transported around the body. The<br />
body's transport system - blood, lymph and the fluid<br />
between cells (interstitial fluid) - are primarily made up of<br />
water.<br />
We need tears not only to express our sorrow, but to allow<br />
our eyelids to open and close smoothly. Saliva moistens<br />
food so that it doesn't scrape down the throat. Synovial<br />
fluid between joints stops bones from grating together.<br />
Tears, saliva and synovial fluid are predominantly water.<br />
Water is a marvellous solvent - the medium in which most<br />
nutrients and body chemicals can dissolve.<br />
How do we know when we are thirsty?<br />
This may sound like a silly question. However, by the time<br />
we feel thirsty, our body is already slightly dehydrated. Thirst<br />
occurs when receptors in the hypothalamus in the brain are<br />
stimulated in response to certain changes in the body. These<br />
changes include the following:<br />
Reduction in volume of body fluids by 1 per cent - this is<br />
only about 500 millilitres of water. In a heavy exercise<br />
session it is easy to lose 1 litre (about a cup and a half) of<br />
water and you are too busy (waiting for the class to end)<br />
to notice. This is why it is important to drink water before,<br />
during and after exercise.<br />
An increase in the concentration of dissolved substances in<br />
the blood, such as sugar and salt, will alert the hypothalamus<br />
of a need for water. Have you ever woken up thirsty
Water: The Most Impoflant Nzltrient 61<br />
in the middle of the night after eating a salty meal? Canny<br />
bar owners also bank on this principle by providing salty<br />
snacks to increase thirst so we buy more drinks.<br />
If the mouth and throat are dry it's a dead giveaway we<br />
are thirsty. Some drugs can also cause this sensation.<br />
Diets: the wet and the dry<br />
All sorts of factors influence the amount of water we need.<br />
For instance, taking diuretics for a heart condition will mean<br />
that we wee out lots more fluid. Accordingly, this means we<br />
need extra water. Non-prescription diuretics include alcohol,<br />
tea and coffee. For every one of these consumed, drink an<br />
extra glass of water. Another factor that influences how much<br />
water we need is whether our diet is wet or dry. A wet diet<br />
is full of fruit and vegetables, juices and soups. Five pieces<br />
of fruit will yield an average of half a litre of water. A dry<br />
diet is one full of meat, bread, biscuits, alcohol, coffee and<br />
tea. The former will require us to drink less water than the<br />
latter.<br />
Tap water, filtered water, spring water -<br />
which water?<br />
It would be superb to drink straight from a pure mountain<br />
stream as it cascades down from snowcapped mountain peaks,<br />
or sip the dew from rose petals. Most of us, however, drink<br />
water from the kitchen tap.<br />
In Sydney, the Water Board is cracking down on impurities<br />
in the water supply. Unfortunately there are still a few bugs<br />
that escape the net, including giardia and cryptosporidium,<br />
both of which cause tummy problems including nausea and
62 The Commonsense Gecide to <strong>Eating</strong> <strong>Well</strong><br />
diarrhoea. Ralph Nader, a consumer advocate, from the<br />
Centre for Responsive Law in the United States, found that<br />
more than 2000 chemicals exist in water supplies. Only 30<br />
are tested for. The same is probably true for Australian city<br />
water supplies. It is what is not tested that could be a<br />
problem.<br />
In order to sanitise the water which is supplied to millions<br />
of people, several chemicals are added, some of which may<br />
be detrimental to health, including chlorine and fluoride. Aluminium<br />
was formerly added to reduce cloudiness in the water<br />
and fortunately is no longer used. The problems <strong>with</strong> fluoride<br />
are discussed on page 178. Chlorine is added to the water as<br />
a disinfectant and antibacterial agent. It has been used since<br />
1904, when Sir Alexander Houston demonstrated that chlorine<br />
destroyed typhoid bacillus and cholera. Unfortunately,<br />
chlorine causes oxidation of cells, hence free radical damage.<br />
It also depletes vitamins E, C, A, BIZ and selenium. When<br />
chlorine combines <strong>with</strong> humic acid (from decaying leaves and<br />
soil found in the bottom of water reservoirs), a group of chemicals<br />
known as (trihalomethanes) THM are formed. The best<br />
known is chloroform, once used as an anaesthetic, now<br />
banned due to increased risk of liver and kidney cancer. The<br />
July 1992 issue of the Journal of American PubGic Healtd<br />
reported that people who drink chlorinated water have a 21<br />
per cent increased risk of bladder cancer and a 38 per cent<br />
increased risk of rectal cancer. Chlorine will evaporate if you<br />
leave water in an opened container overnight. Hot showers<br />
increase inhaled chloroform, and don't even think about<br />
indoor council swimming pools.<br />
The truth of the matter is that it is better to drink tap<br />
water than no water at all. And as most of us are walking<br />
around partially dehydrated, the question of which water we<br />
drink takes a lower priority. However, some people are<br />
willing to take the extra steps in order to provide purer water
Water: The Most Important Nutrient 63<br />
for themselves and their families. There are many water<br />
filters available that cater to this need. Choose a water filter<br />
that removes chlorine, bacteria, pesticides and asbestos. The<br />
more expensive models, including reverse osmosis, will also<br />
remove fluoride and heavy metals such as arsenic, lead and<br />
mercury. Spring water is also available and very popular,<br />
although you have to wonder about the environmental consequences<br />
of millions of discarded plastic bottles.<br />
Drink it anyway:you won't regret it<br />
Most people find that their general health improves by drinking<br />
2 litres of water daily. One major complaint is the<br />
increased number of visits to the loo. Your bladder takes<br />
about two to three weeks to get over the shock of all the<br />
extra fluid and after this time will settle down, happy to<br />
expand to meet the new circumstances. If you prefer to drink<br />
mineral water, choose a flat variety rather than the bubbly<br />
varieties. Carbonated water, whether natural or not, interferes<br />
<strong>with</strong> bone calcium and phosphorus ratios and may cause flatulence<br />
<strong>with</strong> the added gas.
BITS AND PIECES
Safe or Fake: Additives,<br />
Organics and Germs in<br />
the Kitchen<br />
Sweet as sweet can be: artificial sweeteners<br />
Artificial sweeteners have been part of the modern diet for<br />
decades. Most were discovered in laboratories by accident.<br />
For instance, cyclamates were discovered in 1937 when a<br />
chemist's ciggie tasted sweet after he was messing around<br />
<strong>with</strong> an experiment. Saccharin was similarly discovered when<br />
a scientist in Johns Hopkins laboratory was munching on a<br />
sandwich. These men's mothers probably despaired of their<br />
son's poor hygiene, but would have been really angry when<br />
they realised that they missed out on mink coats and pearls<br />
because their boys didn't receive the squillions of dollars that<br />
the pharmaceutical companies made from the discovery of<br />
sweeteners.
68 The Commonsense Gzkide to <strong>Eating</strong> <strong>Well</strong><br />
Saccharin, aspartame and sucralose<br />
Artificial sweeteners are classified as food additives and have<br />
insinuated themselves into soft drinks, cake mixes, icecreams,<br />
chewing gum and are added to many cappuccinos<br />
(skinnycinnos).<br />
Saccharin is 300 times sweeter than sugar and contains zero<br />
calories. It has a bitter, metallic aftertaste. In 1977, saccharin<br />
was banned in the United States because various studies<br />
showed that it caused bladder cancer in mice. There was a<br />
public outcry (Americans don't like being compared <strong>with</strong><br />
rodents) and saccharin was reinstated. Cyclamates share a<br />
common history <strong>with</strong> saccharin, however, they are currently<br />
banned from sale. Saccharine and cyclamates are absorbed<br />
from the intestines and enter the bloodstream. Once circulating<br />
in the bloodstream the body has no idea what to do<br />
<strong>with</strong> these foreign chemicals and <strong>with</strong> no biochemical pathways<br />
to travel, these sweeteners exit the body via the kidneys<br />
and into the urine. It is possibly while waiting in the bladder<br />
that the cancer-forming agents are activated.<br />
Aspartame (sold as Nutra Sweet) holds the largest share of<br />
the artificially sweet market. Discovered in 1975 (another<br />
accident, this time during the search for a stomach ulcer<br />
drug), aspartame is a concoction of two amino acids (units of<br />
protein) - aspartic acid (40 per cent) and phenylalanine (50<br />
per cent) - together <strong>with</strong> a molecule of methanol (10 per<br />
cent). Being predominantly protein, aspartame has four<br />
calories a gram, but by a quirk of science tastes 200 times<br />
sweeter than sugar, so that very much less than 1 gam' is<br />
required for even the sweetest tooth.<br />
The two amino acids are broken down and treated accordingly<br />
in the body. Methanol (wood alcohol) forms the poisonous<br />
substance formaldehyde and formic acid. A significant<br />
number of people suffer from side effects from aspartame.<br />
Symptoms include blurred vision, tinnitus, headaches,
Safe or Fake 69<br />
dizziness, memory loss, drowsiness, depression and irritability.<br />
Whether it be from the methanol or the unusual influx<br />
of single amino acids has not been determined. In addition,<br />
people suffering from the genetic condition Phenylketonuria<br />
(PKU) are unable to metabolise the amino acid phenylalanine.<br />
There are warnings to this effect on the labels of food<br />
and drink containing aspartame.<br />
Sucralose tastes like sugar and is chemically similar to sugar<br />
but has a chlorine molecule attached to it. Unlike sugar, it is<br />
not recognised at the site of absorption, the small intestine.<br />
Incapable of being digested, sucralose continues down the<br />
digestive tract where it will be fodder for the bacteria there.<br />
Unaccustomed as they are to a sugar molecule.<strong>with</strong> chlorine,<br />
the presence of sucralose in the bowel will cause an imbalance<br />
to the bowel microflora. Bloating and flatulence are<br />
often the result. If large amounts are consumed there may<br />
well be diarrhoea, as water will rush into the bowel in order<br />
to dilute the concentration of sugar-like molecules. Goodness<br />
only knows the fate of the chlorine molecule, although we<br />
know that chlorine on its own is a potent free radical (see<br />
page 152).<br />
Another group of artificial sweeteners is known as sugar<br />
alcohols. These include mannitol, sorbitol, xylitol and maltitol.<br />
They are commonly found in sugar-free chewing gum.<br />
Sugar alcohols are not absorbed or are absorbed very slowly,<br />
again causing microflora imbalance and diarrhoea.<br />
The case against artificial sweeteners<br />
I do not believe artificial sweetners have any value in a good<br />
diet. First, the foods they are normally added to - ice-cream,<br />
biscuits and carbonated drinks - are best avoided anyway.<br />
Second, they cause bowel disturbances in a large number of<br />
people. Third, they do nothing to change our taste for sugar.<br />
Although it is a natural human instinct to like sweetness,
70 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
refined sugar and artificial sweeteners were never part of the<br />
original plan. If we keep eating sweet food, we will keep<br />
craving sweet food. Most people who swear off sugar are<br />
delighted to find that after a couple of weeks (a month at the<br />
most) they lose their desire for chocolates, cakes and lollies.<br />
An added bonus is that fruit tastes more intense as the fruit<br />
sugar, fructose, registers on jaded tastebuds. Substituting<br />
artificial sweeteners for sugar does nothing to change a habit<br />
of a lifetime.<br />
Fourth, the diabetic market is saturated <strong>with</strong> foods containing<br />
artificial sweeteners. Diabetics are best trying to avoid<br />
a sweet tooth. Encouraging it is cruel.<br />
Fifth, there is evidence linking saccharin to bladder cancer<br />
and aspartame <strong>with</strong> headaches and neurological problems,<br />
although the incidence and risk is low.<br />
Sixth, in my experience people do not lose weight by substituting<br />
artificial sweeteners for sugar. People lose weight by<br />
eating less fat and exercising. In fact, there are several<br />
studies, kept under wraps, which show that people eating<br />
artificial sweeteners tend to put on more weight than those<br />
eating sugar. One theory is that if the body is expecting a<br />
rise in blood sugar levels, as promised by the sweet taste, it<br />
won't stop till it gets a rise in blood sugar. We probably eat<br />
more to compensate.<br />
And finally, a comment on the economic politics of artificial<br />
sweeteners. In a world <strong>with</strong> millions starving for want of<br />
calories (calories are needed to provide energy), we have the<br />
irony of an industry spending huge amounts of money and<br />
resources creating substances that contain no calories or<br />
energy.
Food additives: preserve or punish?<br />
Safe oor Fake 71<br />
Fresh food has a tendency to go off. A fact people have<br />
noticed for thousands of years. And for thousands of years<br />
keen-minded individuals have set about experimenting <strong>with</strong><br />
ways to preserve food. The ancient Greeks burnt sulphur<br />
over their wine. During the Middle Ages in Europe, people<br />
preserved their meat <strong>with</strong> saltpetre (nitrates), something we<br />
still do today.<br />
In the past, it was important to keep a few bits of fruit and<br />
vegetables pickled or candied for the winter. The great sea<br />
voyagers salted away carcasses of meat to last them months<br />
at sea. In cities of millions of people, everyone eating food<br />
as soon as it is picked is an impossibility. In addition, we<br />
think it is our right to eat food that is out of season. This is<br />
achieved either by expensive freighting or by using hot-house<br />
technology.<br />
The microscope identified microorganisms - moulds and<br />
yeasts (fungi) and bacteria - as the cause of fermentation and<br />
putrefaction and confirmed them as likely candidates for<br />
sending food off. Mould and yeast love sugar and head for<br />
carbohydrate foods such as fruit and bread, while bacteria are<br />
inclined towards protein, infesting meat, chicken and eggs.<br />
Microorganisms prefer a steady environment, one that<br />
sounds like a holiday brochure: plenty of food (protein and<br />
carbohydrate); not too hot nor too cold (around 37 degrees<br />
Celsius); plenty of fresh air (most microorganisms are aerobic,<br />
meaning they need oxygen); and go easy on the acid (preferring<br />
an alkaline environment). (Also see food safety on<br />
page 74).<br />
Additives to preserve, to enhance, to tart up<br />
Food additives are not only for preserving food but are used<br />
to facilitate many aspects of the production, handling and
72 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
processing of our tucker. The official definition of a food<br />
additive is 'any substance not normally consumed as a food<br />
by itself and not normally used as a typical ingredient of a<br />
food, whether or not it has nutritive value'. There are food<br />
safety requirements that call for the labelling of foods containing<br />
additives. They are often given a numeric code such<br />
as 210, which stands for benzoic acid. If you are concerned<br />
or allergic to food additives, pick up a food additive code<br />
breaker from your newsagent or bookshop.<br />
Preservatives (200 to 299)<br />
Preservatives aim to inhibit the growth of germs, using a<br />
variety of methods. Antioxidants are sometimes used to<br />
prevent free radicals from damaging food. Free radicals can<br />
cause, among other things, rancidity (butter becomes rancid)<br />
and oxidisation (fzuit that turns brown). Synthetically derived<br />
antioxidants such as BHT may be used or antioxidant nutrients<br />
including vitamins E and C.<br />
The yellow, smelly mineral sulphur or sulphur dioxide is<br />
often added to wine, beer, jams and dried fruit to prevent<br />
microbial growth and oxidation. Sulphur-dried apricots are<br />
always more brightly coloured than their shrivelled sun-dried<br />
cousins. The down side is that some people are allergic to<br />
sulphur and may suffer from asthma or other problems after<br />
consuming it. Sodium metabisulphate is used to clean bottles<br />
and is present in most wines. When you pull out the cork,<br />
sulphur dioxide is released.<br />
Nitrates have been used for centuries to preserve the likes<br />
of salamis and other deli meats. Not only do they protect<br />
against deadly bugs causing botulism, they also give dead<br />
meat a rosy hue. The problem here is that when nitrates<br />
come in contact <strong>with</strong> protein in the body they form nitrosamines,<br />
which are considered to be carcinogenic. Drop that<br />
salami sandwich immediately.
Safe or- Fake 73<br />
Other preservatives include benzoic acid, paraben, sorbic<br />
acid and nisin.<br />
CoIourfng (100 to 180)<br />
The use of colour additives has been banned in Norway since<br />
1978, which must make their fairy bread and Smarties boring.<br />
Adding colour to food is purely cosmetic and can be quite<br />
deceptive. For instance, a completely synthetic dessert can<br />
be called strawberry flavour even though it has never clapped<br />
eyes on a piece of fruit. Tartrazine (102) is a yellow food<br />
colouring that can cause skin rashes and asthma in sensitive<br />
individuals. Ironically, some of the 'natural' colouring additives<br />
such as annatto may cause more allergic reactions than<br />
the synthetic additives.<br />
Flavouring<br />
Flavouring is added to give bland and indifferent food a bit<br />
of character or restore flavour lost in processing. Flavouring<br />
additives are not given code numbers because they are often,<br />
like Coca Cola 'secret recipes'. Artificial sweeteners are<br />
another type of flavour enhancer (see page 67).<br />
Processing agents<br />
In order for processed food to look the same, pour the same,<br />
mix the same every time, all sorts of chemicals need to be<br />
added. For example, anti-caking agents are used to control<br />
the free-flowing nature of powdered foods such as icing sugar,<br />
salt and milk powder. Sodium silico aluminate (containing<br />
aluminium) is sometimes added in free-running salt; bleaching<br />
agents including chlorine or peroxide are used to achieve<br />
a consistent white colour in flour; humectants such as glycerol<br />
are added to prevent food like bread from drying out; thickeners<br />
and vegetable gums are used to modify the consistency<br />
of food; and emulsifiers are used to overcome the perennial
74 The Comomense Gzcide to <strong>Eating</strong> <strong>Well</strong><br />
problem of mixing oil <strong>with</strong> water. Lecithin is a commonly<br />
used emulsifier - no health threats here for a change.<br />
The bottom line<br />
The bottom line is that we, as consumers, expect our food to<br />
be consistent. For this to occur, food additives are used. We<br />
either cop it sweet, or are willing to pay more for organic<br />
produce that has not been tampered <strong>with</strong>, or we grow or make<br />
our own.<br />
Food safety: not in my kitchen you don't<br />
If you know about Mr Acidophilus and co. (see pages 34-3,<br />
then you are probably quite fond of bacteria, particularly<br />
bowel bacteria. So it's hard to accept that some bugs are out<br />
to kill us, or at least make us sick to the stomach.<br />
There are estimated to be two million cases of food poisoning<br />
in Australia each year. Most at our own hands! While<br />
most food poisoning is merely a day or two of diarrhoea and<br />
perhaps a course of antibiotics, sometimes these bugs are<br />
deadly, particularly for those more vulnerable, which includes<br />
the elderly, children and the immune suppressed.<br />
Food safety is seldom taught in schools. My only education<br />
about food safety and kitchen hygiene came from 1960s<br />
women's magazines. By the mid-1970s, these magazines were<br />
full of information on finding one's G-spot or making beef<br />
wellington and crepe suzettes. The days of aprons and food<br />
safety tips were gone. Not so for the generations of bacteria,<br />
viruses and fungi that lived on through the swinging '60s,<br />
sexy '70s, merchant banking '80s into the enviroconscious<br />
'90s and beyond. More education is needed.
Safe or Fake 75<br />
The usual suspects<br />
FOOD P~~sONING- THE USUAL SUSPECTS<br />
bacteria rnoufd virvser> yeasf<br />
There are four types of microorganisms in food that may<br />
cause us grief: bacteria, moulds or fungi, yeasts and<br />
viruses. The most common are bacteria.<br />
Bacteda Never great believers in birth control, bacteria<br />
breed at the drop of a hat, usually by dividing in half.<br />
Their favourite motto is 'divide and conquer'. Family gettogethers<br />
must be quite boring or harmonious, as bacteria<br />
in theory are identical brothers and sisters.<br />
Salmon& Not a female fish, but a bacteria that is<br />
responsible for the majority of food poisoning outbreaks<br />
in Australia. Safmonella causes gastro-type symptoms,<br />
including nausea and vomiting which in the weakened<br />
can result in death. Outbreaks have been recorded<br />
mainly from raw meats, poultry and dairy products, but<br />
also peanut butter, desiccated coconut, chocolate and<br />
eggs. Most outbreaks occur through cross-contarnination<br />
from raw food to cooked food.<br />
Badus cereas 'Cereus' refers not to a sober state ofmind,<br />
but being first detected in cereal foods. The major syrnptoms<br />
of infection are diarrhoea and vomiting occurring<br />
I <strong>with</strong>in 8 to 16 hours aRer eating the contaminated food.
76 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
This little critter is found mainly in pre-cooked foods, especially<br />
starchy vegetables, rice, sauces, puddings and meat<br />
and can even grow in the fridge. For this reason, precooked<br />
food should not be stored in the refrigerator for<br />
more than two to three days.<br />
Staphylococcus aureus OAen found halfkay up our<br />
nostril, this bug is a normal inhabitant. Infected cuts and<br />
sores also contain large numbers and together <strong>with</strong><br />
sneezing on food, these are common ways in which<br />
infection spreads. Violent abdominal cramps, nausea.<br />
vomiting and diarrhoea are symptoms which may<br />
appear very quickly, from one to six hours after eating<br />
the infected food. Foods commonly implicated include<br />
ham, frankfurters, cream-fded bakery products and<br />
some cheeses.<br />
Campylobacter jejud A relatively common cause of<br />
food poisoning, so you'd think it would do us the courtesy<br />
of adopting an easy-to-pronounce nickname like<br />
'carny' or 'CJ'. Outbreaks of CJ have been linked to the<br />
consumption of undercooked poultry, mince and sausages<br />
and cooked poultry which has been contaminated<br />
by raw poultry (cross-contamination). Diarrhoea and a<br />
fever may appear two to seven days after eating the<br />
offending food, and this time delay makes diagnosis a<br />
bit tricky. Some people contract a kind of arthritis that<br />
may last weeks to months.<br />
Other less common microorganisms that cause food<br />
poisoning include E. coE, Listeria monocyfogenes and<br />
CIostridum botrrlinum.
Safe or Fake 77<br />
How bacteria breed and spread and what to do<br />
about it<br />
Hot Is hot, cold is cold<br />
As a rule, bacteria are sensitive little fellows, particularly to<br />
temperature. If it is too cold or too hot they either die or<br />
keep a very low profile. If food is kept in the 'danger zone',<br />
that is, between 6 and 100 degrees Celsius, this is where the<br />
trouble begins. Bacteria flourish and multiply, doubling in<br />
number in as little as 20 minutes.<br />
Cold food should be kept really cold in the refrigerator -<br />
4 degrees Celsius and under. Take perishable foods such as<br />
meat, poultry, milk and seafood home immediately after purchase.<br />
Buy these foods last on your shopping trip. If you are<br />
likely to take more than one hour getting home, invest in an<br />
esky or cool container to store the food before you can put it<br />
in the fridge.<br />
Put leftovers in the fridge or freezer promptly after eating.<br />
Don't leave them on the counter top to cool down overnight.<br />
Cook foods to at least 100 degrees Celsius - boiling<br />
point - as this will kill most bacteria and viruses that can<br />
cause illness. One way to tell for sure is to invest in a meat<br />
thermometer. This applies to reheating food as well. Make<br />
sure the food is cooked or heated throughout. This is particularly<br />
important for mince, sausages and chicken. Steak is<br />
okay undercooked. Microwave ovens tend to cook food<br />
unevenly, even on a turntable. Make sure you mix the food<br />
once or twice during cooking.<br />
Soap and water<br />
Most of us feel that a quick rinse of the hands under the cold<br />
tap is all that is needed. Not so. Wash hands <strong>with</strong> soap and<br />
warm water for 20 seconds before handling food. This is especially<br />
important when handling raw meat, poultry or seafood.
78 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Keeping hands, benchtops and washing cloths squeaky<br />
clean is of paramount importance. There are antibacterial<br />
solutions available. In addition, you might like to add a few<br />
drops of eucalyptus, lemon or lavender oil to rinsing water<br />
for washcloths and when wiping down benches. These essential<br />
oils not only smell clean, they are antibacterial.<br />
From me to you: cross-contamination<br />
Cross-contamination occurs when bacteria transfer from one<br />
food to another. For instance, placing a cooked steak on the<br />
same plate that held it before cooking, allows the bacteria in<br />
the juices from the raw steak to infect the cooked.<br />
Another cross-contamination scenario happens when we<br />
store raw food (particularly meat or poultry) in the fridge<br />
above cooked food, allowing the juices to drip down.<br />
Throw in the towel<br />
For those who hate drying the dishes, this is a great reason<br />
to throw in the towel. The dirty teatowel, that is. Either leave<br />
the dishes to dry naturally or buy a dishwasher! Don't throw<br />
a dirty teatowel over the rack of dishes. Change teatowels<br />
and dishwashing cloths regularly.<br />
Cutting boards are a common cause of cross-contamination,<br />
particularly when using the board after preparing raw meat,<br />
poultry or seafood. Give them a good scrub <strong>with</strong> detergent<br />
in hot water. If you have wooden chopping boards, one way<br />
of being sure you have killed any bugs is to pop the board<br />
into the microwave for three minutes. Unfortunately, this is<br />
not effective for plastic cutting boards.<br />
I think I thaw it in the fridge<br />
Don't take short cuts. Never thaw or marinate meat, seafood<br />
or poultry out of the fridge. Almost half of Australians defrost<br />
their food on the benchtop or under running water. Plan
Safe or Fake 79<br />
ahead and thaw your food in the fridge. It may take longer,<br />
but it is a safer method. If you choose to defrost using the<br />
microwave, make sure you cook the food straightaway.<br />
When in doubt, throw it out<br />
Those sneaky little microorganisms have many tricks up their<br />
tiny sleeves and other articles of apparel. One of them is their<br />
'cloak of invisibility'. Not only can we not see them, but we<br />
cannot smell, hear or even taste them. When in doubt, throw<br />
it out. Or give it to the dog, whose stomach is usually hardier<br />
than our own.<br />
Lie and let a few live: freedom to the bugs<br />
Don't let all this disinfecting turn into an obsessive compulsive<br />
disorder. Take reasonable steps to thwart microorganisms. On<br />
the other hand, it is illogical to expect that our environment is<br />
microorganism free, when in and on ourselves are literally billions<br />
of bugs. If our internal bugs are content, we should be<br />
able to live in harmony <strong>with</strong> our environment (see probiotics,<br />
page 34). <strong>Eating</strong> probiotic foods such as yoghurt, in addition<br />
to taking reasonable food safety precautions, will improve our<br />
resistance against food poisoning.<br />
If you are using disinfectants, make sure that you rinse<br />
cutlery and crockery very well. The disinfectant may be<br />
aimed at bad bugs, but if you swallow the stuff, it will also<br />
kill good bugs in the gut.<br />
Organic shmorganic: chemical free<br />
The National <strong>Health</strong> and Medical Research Council found<br />
residues of DDE (a breakdown product of DDT, a pesticide)<br />
in all samples of human breast milk tested in 1986. DDT had<br />
already been banned for several years by 1986!
80 T&e Commonsense Gzlide to Eafiztg WeZL<br />
It took agent orange and the massive backdown of cigarette<br />
companies to verify that toxic chemicals are dangerous,<br />
whether we touch them, inhale them or eat them. Many conditions,<br />
including Chronic Fatigue Syndrome, cancer and<br />
various auto-immune conditions seem to be closely linked<br />
<strong>with</strong> an excess of chemicals and sufferers are especially<br />
sensitive to the chemicals used in farming. Although we are<br />
becoming more aware of the dangers of toxic chemicals, as<br />
individuals we can do little about the pollution and paint<br />
fumes we breathe. However, we can choose what we put in<br />
our mouth. For this reason, organic farming has spread from<br />
a wacky, hippie pursuit to mainstream agriculture. Today you<br />
can buy organic rice and flour at the supermarket, unheard<br />
of five years ago.<br />
Organic farming combines modern scientific principles<br />
<strong>with</strong> old knowledge and traditions. 'Organic' means farming<br />
<strong>with</strong>out the addition of artificial chemicals used in (a) preparing<br />
the soil, (b) growing the crop or (c) storing and<br />
marketing the produce. Non-organic produce is frequently<br />
sprayed <strong>with</strong> pesticides, fungicides and so on. Organic<br />
animals are allowed to range as freely as possible, and are fed<br />
organic grains and produce.<br />
In Australia we have several regulatory organisations,<br />
including the National Association for Sustainable Agriculture<br />
(NASAA), Biological Farmers of Australia (BFA) and the<br />
Bio-Dynamic Farmers of Australia (Demeter). These groups<br />
monitor the organic farms and their produce. Basically there<br />
are three main categories of organic-ness. The first or highest,<br />
come from farms that use no artificial fertilisers or synthetic<br />
chemicals and have not done so for more than two years. The<br />
second stage, sometimes called 'conversion', is similar but has<br />
been that way for less than two years. The third level, 'sustainable',<br />
means that a minimum of non-toxic sprays have<br />
been used under strict guidelines.
Safe or Fake 81<br />
Although organic produce costs more, it is environmentally<br />
friendly and studies have shown that the produce contains<br />
more micronutrients than those produced under mainstream<br />
farming practices.
OUR DAILY FOOD
The Food We Eat<br />
Nuts, seeds and oils<br />
A nut, and we've all known a few, refers to the shell-encased<br />
single seed of a tree. If you have ever been the recipient of<br />
the school joke about peanut trees, you will be aware that<br />
peanuts are not nuts, but legumes. Nevertheless, peanuts are<br />
de facto nuts. Both seeds and nuts are high in fat and in their<br />
processed form as 'vegetable' oil, are the source of most of<br />
the oils we consume, <strong>with</strong> the exception of olive oil, which<br />
comes from the olive fruit. Fat is vital to our health, necessary<br />
for hormones, cell membranes and so much more. People<br />
who live fat free tend to look desiccated and vaguely<br />
unhappy. Much better to look healthy <strong>with</strong> the glowing skin<br />
and shiny hair that only good quality fats found in nuts and<br />
seeds can provide.<br />
Because nuts, seeds and oils are high in fat, they are susceptible<br />
to becoming rancid (see oil processing, page 51). We
86 The Common~se Ggide to <strong>Eating</strong> <strong>Well</strong><br />
can minimise this by buying them in small quantities from<br />
shops that have a high turnover. Keep them covered in dark,<br />
cool containers, such as a fridge. Cold-processed oils retain<br />
more vitamins and have less chance of containing oxidised<br />
fatty acids (a big cause of free radicals in the body). Be aware<br />
that cold-processed oils taste stronger and look more cloudy<br />
than their processed-beyond-belief cousins.<br />
ALMOND<br />
The almond tree blossoms a treat, just like its relatives the<br />
cherry, peach and apricot trees. Almonds have plenty of<br />
essential fatty acids, potassium, calcium, iron, zinc and<br />
vitamin E. Almond paste, made in the same way as peanut<br />
butter, put through a grinder, is a scrumptious spread on toast<br />
for breakfast. Marzipan, originating from the Middle East, is<br />
made from ground almonds, sugar and egg white.<br />
B ~ R<br />
Butter is included here because of its oil status. Butter is<br />
churned from cream, the fattier part of milk. In Australia,<br />
butter is made from cow's milk but it can also be made from<br />
other animals, including the buffalo and yak. Butter is mostly<br />
saturated fat but contains a tiny portion of milk protein and<br />
sugar. Salt is often added in the processing. Butter provides<br />
us <strong>with</strong> vitamins A and D, and can play a small part in a good<br />
diet.<br />
BRAZIL NUT<br />
Brazil nut trees (native to - you guessed it) grow up to 30<br />
metres tall. Brazil nuts are slightly higher in fat than almonds<br />
but contain the amino acid methionine, which helps the liver<br />
metabolise fats. They are a reasonably good source of protein;<br />
good news for vegans.
The Food We Eat 87<br />
CASHEW<br />
Slightly lower in fat than other nuts, cashews are also a good<br />
source of potassium, iron and zinc. The cashew is a distant<br />
relative to poison ivy and cashew shells contain a nasty substance<br />
that burns your skin, which is why cashews are always<br />
sold naked.<br />
CHESTNUT<br />
Chestnuts have never really been a hit in Australia. Maybe<br />
because our climate doesn't get cold enough (sorry Tasmania)<br />
for it to be sold over fires on street corners. The chestnut<br />
was once used as a major food source before the potato hit<br />
the market in Europe in the sixteenth century. Chestnuts<br />
have about one-third the fat of other nuts and much more<br />
starch.<br />
COCONUT<br />
Maybe because of its size, we seldom think of the coconut<br />
as a nut. Coconuts give so much of themselves: milk, oil and<br />
flesh. Coconut oil is made up of mainly saturated fats, which<br />
make it a very stable cooking oil.<br />
HAZELNUT<br />
Hazelnuts are also known as filberts, which sound more like<br />
a friendly chipmunk or a computer nerd than a nut. Hazelnuts<br />
are used in the creation of the liqueur Frangelico but they<br />
have other uses as well. They provide similar nutrients to<br />
almonds and are another nut that is lovely ground as a paste<br />
on toast for breakfast.<br />
LINSEED<br />
Linseeds are also known as flax seeds. Linseeds have uses<br />
other than as a food source, including providing fibre for cloth<br />
and oil for polishing wood, particularly cricket bats. The seeds
88 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
contain lignans that have phyto-oestrogen effects useful for<br />
controlling the symptoms of menopause. Ground linseeds are<br />
also very good for constipation and, due to the softening<br />
action of the linseed fibre, help conditions such as diverticulitis<br />
and colitis.<br />
Often recommended to treat conditions such as eczema<br />
and PMS, cold-pressed linseed oil is prized for its content of<br />
omega-3 and omega-6 fatty acids. Just make sure you don't<br />
buy the furniture oil variety instead.<br />
Macadamia nuts are expensive because their shells need jackhammers<br />
to open them. Macadamias are actually native to<br />
Australia. It is just because those canny Hawaiians covered<br />
them in chocolate and put them in fancy tins everyone thinks<br />
they are from the fiftieth state. They have a high fat content,<br />
even for a nut, and don't offer much in the way of micronutrients.<br />
Macadamia oil makes a very nice massage oil and<br />
moisturiser.<br />
OLIVE<br />
Olives are one of a few fruits that store energy as oil. Raw<br />
olives are very bitter and need to be soaked in a salty solution<br />
to remove some of the bitterness. Olives and their oil have<br />
been around for some time. 'And the dove came in to him in<br />
the evening: and, lo, in her mouth was an olive leaf pluckt<br />
off (Genesis, 8, xi).<br />
'Extra virgin' olive oil is the prized oil that comes from the<br />
first pressing. Generally, the darker and dirtier-looking the<br />
olive oil, the purer it is. Other olive oils such as pure or virgin<br />
are from subsequent pressings. There is nothing 'light' about<br />
light olive oil except its colour, which means that it has<br />
undergone excessive processing. Avoid it.
The Food We Eizt 89<br />
PEANUT<br />
Peanuts snuck into the nut category (although they are botanically<br />
a legume) and much to the chagrin of proper nuts, are<br />
the most popular of the lot. Peanuts are a little lower in fat<br />
than nuts and are reasonably high in protein. Fresh-ground<br />
peanut butter is quite a delightful food. However, some<br />
people have been known to eat large containers at a sitting.<br />
Shame.<br />
Peanuts receive a lot of bad press and not merely because<br />
of the deception regarding their nut status. They are a<br />
common allergen, causing skin and breathing problems<br />
among the susceptible. In addition, they often grow a mould<br />
called AspqiZZus flavus, which produces a poison called<br />
aflatoxin. Aflatoxin is 20 times more toxic than DDT. The<br />
Department of Agriculture issue guidelines as to minimum<br />
quantities of aflatoxin, nevertheless, there is always a little<br />
present.<br />
PUMPKIN SEEDS<br />
Don't throw them out. Baked pumpkin seeds taste very good.<br />
Pumpkin seeds are high in zinc and are good in preventing<br />
and treating prostacic problems (see pumpkin on page 100).<br />
Put them on the male member of the family's plate, covered<br />
in gravy, so he eats them before realising. People <strong>with</strong>out<br />
prostates can also indulge in pumpkin seeds because of their<br />
zinc and essential fatty acids.<br />
SESAME SEEDS<br />
Sesame seed oil is used extensively in Asian cooking. Try<br />
buying the cold-pressed variety as the taste enhances any stirfrying<br />
or cooking. Sesame seeds contain reasonable amounts<br />
of lignan, the plant hormone substance so good for menopause<br />
symptoms. Tahini is a paste made from ground sesame<br />
seeds and is a frequent ingredient in many Middle Eastern
90 The Commonsense Guide to Eahg WeZi<br />
dishes. Tahini makes a very nice spread on bread: try substituting<br />
it for butter on salad sandwiches.<br />
SUNFLOWER SEEDS<br />
Sunflower seeds taste good on their own or thrown on top of<br />
salads. A delicious snack is to toss a handful of sunflower<br />
seeds onto a heated cast-iron pan, move them round a little<br />
<strong>with</strong> a wooden spoon so that they brown but do not burn.<br />
Just as they begin to brown pour in a tiny amount of low-salt<br />
soy sauce. Take off the heat immediately. Cold-pressed sunflower<br />
oil contains good quantities of essential fatty acids.<br />
WALNUT<br />
Walnuts are the most nutritious of nuts <strong>with</strong> plenty of vitamin<br />
E, calcium, iron and zinc. Walnuts have been found to lower<br />
cholesterol levels.<br />
Herbal tea<br />
As a herbalist I generally prescribe herbal tinctures or tablets.<br />
For some conditions, however, nothing beats a herbal tea,<br />
because of the release of therapeutic volatile oils, which are<br />
not available to the same extent from tinctures or tablets. I<br />
rely on teas such as buchu, cornsilk and uva ursi for urinary<br />
tract problems. Fenugreek and golden rod are good for mucus<br />
congestion such as sinusitis. Tea made from catmint, passionflower<br />
and hops is excellent for sleeping. Herbal concoctions<br />
of burdock, echinacea and red clover teas are terrific blood<br />
purifiers; good for skin problems like pimples and eczema.<br />
Herbs have been used as medicine for as long as plants<br />
and humans have been together on earth, and some herbs are<br />
pretty potent. Just as you wouldn't take Aunt Martha's heart<br />
pills a couple of times a day because you like the taste and
The Food We Eat 91<br />
Aunt Martha seems just fine, nor would you drink a herbal<br />
tea that may have a strong effect <strong>with</strong>out professional advice.<br />
For instance, one little cup of senna pod tea could have you<br />
on the loo all night. Generally, herbal teas sold in supermarkets<br />
and health food shops are fine. But if in doubt, ask.<br />
Herbal tea tips<br />
Supermarkets usually carry a range of herbal teas in<br />
handy teabag form. If you are a herbal tea novice buy<br />
a small packet or a sampler packet until you have<br />
decided on your favourites.<br />
In general, herbal teas do not require milk. The exception<br />
could be dandelion root, cinnamon and ginger.<br />
Honey is another option that suits some people and<br />
some teas more than others.<br />
Use pure water to make your teas.<br />
Use one teaspoon of dried herb (two teaspoons of<br />
fresh herb) per cup of boiling water. Pour boiling<br />
water over herb in enclosed container; for example,<br />
a teapot or infuser.<br />
Chop the leaves and stems of fresh herbs to increase<br />
the surface area and release volatile oils.<br />
Keep any excess tea in the fridge and consume <strong>with</strong>in<br />
24 hours.<br />
The following herbal teas may be drunk freely, say up to five<br />
cups a day. However, try to develop a taste for herbal teas<br />
and drink a variety.<br />
CHAMOMILE<br />
Chamomile is gentle enough for babies and the very elderly.<br />
It is a particular favourite in Germany where it is accepted as
92 The Commonsense Gzlide to <strong>Eating</strong> <strong>Well</strong><br />
a standard variant for tea or coffee. It helps calm the nervous<br />
and digestive systems, which makes chamomile the obvious<br />
choice for those whose digestion is affected by stress. It is<br />
also good to drink if you suffer period cramps. Allointoin is a<br />
chemical derived from chamomile that is anti-inflammatory<br />
and healing. Chamomile tea is recommended as a final hair<br />
rinse for blondes (cool the tea first, this is not intended as a<br />
'blonde' joke). Chamomile blends well <strong>with</strong> a slice of fresh<br />
ginger root.<br />
PEPPERMINT<br />
Peppermint tea is excellent to settle your tummy after a big<br />
meal. The menthol gives it an uplifting flavour and fragrance<br />
although it is not a stimulant in the sense of coffee or tea.<br />
Peppermint is good for any digestive problems, particularly<br />
nausea, bloating, flatulence and the symptoms of irritable<br />
bowel syndrome.<br />
On hot days cool your paws in a bucket of water <strong>with</strong> a<br />
few drops of peppermint oil added (never drink essential<br />
oils). Chilled peppermint tea is also cooling. Women who<br />
suffer from hot flushes and sweating during menopause will<br />
benefit from sipping cool peppermint tea.<br />
ROSEHIP<br />
Rosehip tea, made from the fruit of the wild dog rose, has an<br />
interesting, tart flavour and is a dreamy berry colour. Rosehips<br />
are an excellent source of bioflavonoids and this is probably<br />
why it has earned its reputation as a winter tea to keep colds<br />
and flu away. Rosehip tea is slightly astringent and may be<br />
helpful in mild diarrhoea. Rosehip tea combines well <strong>with</strong> a<br />
strong-tasting honey such as leatherwood.
The Food We Eat 93<br />
DANDELION ROOT<br />
Dandelion root tea is often recommended as a substitute for<br />
coffee, which is rather cruel as the only things it has in<br />
common <strong>with</strong> coffee is that it is black and hot. However,<br />
dandelion root is very, very good for you, particularly your<br />
liver, and it is well worth acquiring a taste for this bitter herb.<br />
If you are using chunks of dandelion root you will need to<br />
boil them for a few minutes; they can also be reused a couple<br />
of times. Sometimes you can find finely ground dandelion<br />
root, which you can use in the same way as coffee powder:<br />
percolate or infuse. The instant version of dandelion root tea<br />
is usually sweetened <strong>with</strong> lactose and tastes a bit sickly. Some<br />
people add soy milk to their dandelion. It is up to you.<br />
Dandelion leaves are rich in minerals, including potassium,<br />
and they are extremely diuretic. Only drink dandelion leaf<br />
tea if that is the effect you are after. It is beneficial for women<br />
who retain fluid around period time.<br />
LEMON GRASS<br />
Lemon grass tastes very different depending on whether you<br />
use fresh or dried. The flavour is tangy and lemony due to<br />
the citrus-flavoured oil known as citral. Growing lemon grass<br />
in a pot or garden is easy. Similar to African violets, it takes<br />
a lot to kill a lemon grass plant. If you have one growing,<br />
snip off what you need for a cup of tea just as you put the<br />
kettle on. Fresh lemon grass is often available at fruit shops<br />
in the herb section. Buy one or two stalks and keep them in<br />
the freezer. Dried lemon grass can also be used. Personally,<br />
I prefer it fresh. Lemon grass combines well <strong>with</strong> ginger,<br />
lemon and honey.<br />
NETTLES<br />
Nettles are still cooked as a vegetable in some parts of the<br />
United Kingdom. The leaves need to be boiled so that the
94 The Commo;rzseme Gde<br />
to <strong>Eating</strong> <strong>Well</strong><br />
nasty little spikes don't cause internal damage. Nettle tea has<br />
long been used as a tonic, possibly due to its high mineral<br />
content, rich in iron. If you suffer from eczema or dermatitis,<br />
drink the tea and make extra to use as a soak. Nettles are<br />
very good for any itching and inflamed skin condition. It is<br />
also widely recommended as a final hair rinse for brunettes.<br />
FENUGREEK<br />
These mustard-coloured seeds have an earthy, pungent<br />
odour. Fenugreek has diaphoretic properties, which means it<br />
makes you sweat: one of the natural mechanisms our bodies<br />
have for clearing out the junk. Fenugreek is an excellent lymphatic<br />
cleanser and can be a powerful adjunct to an internal<br />
spring-cleaning routine. Fenugreek is safe to drink during<br />
pregnancy and will improve milk flow during lactation. Fenugreek<br />
tea helps clear mucous from the sinuses, throat and<br />
nose. Fenugreek also helps to stabilise blood sugar levels.<br />
Great for people <strong>with</strong> a sugar craving. A dab of honey and<br />
squeeze of lemon may be added if desired.<br />
RASPBERRY LEAF<br />
Raspberry leaf tea doesn't taste as yummy as it sounds but<br />
it's not too bad. A tea often recommended during the latter<br />
third of pregnancy to 'tone' the uterus. It is also good for<br />
heavy periods. Drink two or three cups daily. Raspberry leaf<br />
tea can also help quell a nauseous tummy and is also useful<br />
for diarrhoea.<br />
THYME<br />
Thyme is quite a pleasant tea <strong>with</strong> very antiseptic qualities.<br />
Only use fresh (or freshly frozen) thyme as the volatile oils are<br />
in abundance in the fresh leaves. It is a good tea if you have a<br />
chesty cold or lung infection. Gargle when cool to relieve a sore<br />
throat or tonsitilitis. Not one to drink all the thyme!
The Food We Eat 95<br />
The classic 'cold' tea incorporates thyme. Chop two to<br />
three inches of fresh root ginger, a cinnamon stick, the juice<br />
of one lemon, rind of half a lemon, a few sprigs of fresh thyme<br />
and honey. Fill the pot or plunger <strong>with</strong> freshly boiled water<br />
and drink a few cups to help you through the day.<br />
Sage is a very astringent tea. Use the fresh leaves if you can,<br />
although dried will do at a pinch. A strong, cool sage gargle<br />
will help kill any bugs in the throat. Sage contains phytohormones<br />
and is often recommended as a cool drink for<br />
women suffering the hot flushes of menopause. Drink two to<br />
three cups daily for about a month.<br />
GINGER<br />
Ginger makes a very warming winter brew and it is excellent<br />
for a sluggish circulation. Anyone who feels the cold will<br />
benefit from ginger. Ginger is also an effective digestive<br />
remedy, particularly good for nausea.<br />
Fresh ginger root is best. Take a 2- or 3-centimetre bit of<br />
root. Peel or wash the outside then chop into little bits. You<br />
can throw this into a teapot or infuser, or simply place a<br />
couple of thin slices in the bottom of your cup.<br />
LEMON JUICE<br />
Hot water <strong>with</strong> a sqeeze of lemon is quite pleasant and very<br />
good for the liver. It is even nicer <strong>with</strong> a teaspoon of honey.<br />
A teaspoon of brandy or rum can add interest too, although<br />
not recommended for liver health.<br />
CAROB<br />
The finely ground carob bean pod makes quite a decent<br />
drink: a bit like a Clayton's hot chocolate. Carob is a rich
96 The Commonsense Guide to <strong>Eating</strong> Wen<br />
source of minerals, particularly calcium. I like it <strong>with</strong> a sprinkle<br />
of cinnamon, honey and a touch of milk.<br />
Vegetables<br />
How very boring when you find that your parents were right.<br />
It helps a little that they don't know how to surf the Net but<br />
it's darn annoying about those vegetables. It is a fact that<br />
people who eat more vegetables have less cancer, constipation,<br />
heart disease and diabetes. Not only are vegetables low<br />
in fat, they have plenty of fibre <strong>with</strong> vitamins and minerals<br />
to spare. Australians eat an average of 3 kilograms of vegies<br />
per week, <strong>with</strong> at least 1 kilogram in potatoes. Unfortunately,<br />
a number of these potatoes have been transmogrified into<br />
chips, which defeats the purpose slightly. To save the vitamins,<br />
vegetables should be cooked <strong>with</strong> care (not boiled to<br />
death) or even eaten raw.<br />
ASPARAGUS<br />
Asparagus are slim and elegant vegetables; the supermodels<br />
of the vegetable kingdom. Not surprising, as they are part of<br />
the absolutely fabulous Lily family. Until I was in my twenties,<br />
I never realised you could buy asparagus except in a can,<br />
overcooked and oversalted. When I discovered the fresh<br />
version I became a convert. Asparagus contains an amino acid,<br />
asparagine, which is responsible for the almost immediate<br />
effect on the smell of urine.<br />
BEANS<br />
Green beans are actually a legume <strong>with</strong> a fleshy covering.<br />
They are good for the kidneys and bladder.
The Food We Eat 97<br />
BROCCOLI<br />
Part of the cabbage family, broccoli, like its smelly brothers,<br />
has anti-cancer nutrients (indoles) by the bucketload. Broccoli<br />
also has significant amounts of vitamin C, as long as it has<br />
not been cooked forever. Anything dark green like broccoli<br />
has loads of chlorophyll, that wonderful life-giving substance<br />
that helps plants produce energy from sunlight.<br />
BRUSSELS SPROUTS<br />
Similar to broccoli, and even more despised by youngsters,<br />
brussels sprouts contain similar nutrients and anti-cancer<br />
potential.<br />
CABBAGE<br />
Introduced to Europe by the Celts, cabbage is the most commonly<br />
used vegetable and the longest cultivated. Common it<br />
may be but cabbage is uncommonly good for us. It is full of<br />
antioxidant nutrients - indoles. Red cabbage has the added<br />
advantage of containing the pigment antioxidant similar to<br />
red grapes - anthocyanin.<br />
Cabbage juice is wonderful for the healing of stomach<br />
ulcers. Don't be a martyr and drink it straight, mix it half/<br />
half <strong>with</strong> carrot juice.<br />
Cook cabbage <strong>with</strong> a few caraway seeds to dispel the wind<br />
in your belly. The longer cabbage is cooked, the more<br />
cabbagy it tastes. Cabbages are never grown near grapevines<br />
for fear of the taste contaminating the grapes. The outer<br />
leaves of a chilled cabbage worn inside the bra are very good<br />
for the swollen breasts of mastitis. And kake a very elegant<br />
fashion statement.
98 The Commonsense Gaide to <strong>Eating</strong> <strong>Well</strong><br />
CARROT<br />
Carrots are the richest source of beta-carotene (pro-vitamin<br />
A). Did you know carrots were originally purple or black? The<br />
orange variety we have come to love is really a mutant!<br />
CAULIFLOWER<br />
Cauliflower is another of the ubiquitous cabbage family.<br />
Because it is white, cauliflower does not contain as many<br />
carotenes and chlorophyll as coloured vegetables. But it does<br />
contain boron, a mineral important for calcium being properly<br />
utilised in bone.<br />
CELERY<br />
Celery is rich in potassium and sodium. Towards the flowery<br />
ends, the celery is bitter. This is good: more bitter means it<br />
is good for the liver and digestive processes. Celery is used<br />
as a diuretic and celery seed extract can be helpful in the<br />
treatment of arthritis.<br />
CUCUMBER<br />
Cucumbers are very cooling for the hot person, or for the<br />
person eating hot, spicy food. Cucumber skin, usually thrown<br />
out, is a good source of silica, good for the quality of bones,<br />
hair, skin and nails.<br />
GARLIC<br />
Hippocrates, Aristotle, Pliny, in fact all the gang recommended<br />
garlic for all sorts of ailments. And it tastes great <strong>with</strong><br />
pasta. As much a herb as vegetable, we would be much poorer<br />
<strong>with</strong>out the health-giving gifts of garlic.<br />
Garlic helps lower blood pressure and cholesterol;<br />
enhances the immune system; is antibacterial, antifungal,<br />
anti-worm (anthelmintic); and it helps eliminate heavy metals<br />
such as lead from the body.
Tde Food We Eat 99<br />
L E ~ C E<br />
The darker the leaf, the more nutrients. Unfortunately, this<br />
leaves the common iceberg lettuce at the bottom of the nutrient<br />
barrel. All lettuces are a good source of chlorophyll.<br />
MUSHROOM<br />
Mushrooms are not strictly vegetables but a fungus. Mushrooms<br />
are a good source of vitamins and minerals. They are<br />
sometimes represented as containing vitamin BIZ. They do<br />
not. The only way BIZ could be present is from animal<br />
compost that has become lodged in the fan-like underflesh.<br />
ONION<br />
Onions are part of the same Li~~i;:y as garlic and share many<br />
of garlic's health-giving benefits. Eat an onion every day,<br />
cooked or raw. Onions will help lower cholesterol. They also<br />
have a regulating effect on blood sugar levels, which make<br />
them good for diabetes and hypoglycaemia. Onions are also<br />
good for coughs. Thinly slice a red, brown or white onion,<br />
cover <strong>with</strong> honey and leave overnight. Next day, drink the<br />
syrup.<br />
Pickled onions and other pickled vegetables are usually<br />
high in salt, sugar and other preservatives including nitrates,<br />
which are carcinogenic.<br />
POTATO<br />
Potatoes were brought from the New World to the Old in the<br />
1500s and by 1800 became the most important food in<br />
Ireland. A member of the deadly nightshade family but<br />
generally not a troublemaker, potatoes are the favourite<br />
vegetable in Australia. Potatoes contain vitamin C as well as<br />
potassium. Potatoes are low in calories, it is only when they<br />
touch oil do the calories skyrocket. The skin contains most<br />
of their nutrients but don't eat the skin if it has turned green,
ZOO<br />
The Commo~sense Ggide to <strong>Eating</strong> Web<br />
as this is a sign that the poisonous alkaloid solanine is present.<br />
Cutting out the offending green bit is sufficient to remove<br />
the danger.<br />
SPINACH<br />
In Australia we tend to call silver beet, spinach. Silver beet<br />
has a much stronger flavour and bigger leaves than its refined<br />
English counterpart. Both are a good source of iron (the nonhaem<br />
variety) and other nutrients, including chlorophyll.<br />
PUMPKIN<br />
A member of the melon family and native to Central America,<br />
pumpkin is a lovely vegetable, particularly as part of a roast<br />
dinner. The orange flesh provides plenty of beta-carotene, as<br />
well as potassium and soluble fibre.<br />
Pumpkin seeds contain zinc and other factors, including a<br />
phyto-hormone that is useful in the treatment of the prostate<br />
gland.<br />
Grains<br />
Carbohydrates should make up the lion's share of our diet,<br />
anywhere up to 70 per cent. Carbohydrate foods are a mixed<br />
bag: grains, legumes (also a good source of protein), fruit,<br />
vegetables and sugar. Grains, including wheat, rye, barley,<br />
rice, oats, millet and corn are the principal food for the majority<br />
of the world's population. This was not always so.<br />
Anatomy of a grain<br />
The endosperm takes up the majority of the grain. It is<br />
mostly starch and contains soluble fibre, as well as a<br />
few vitamins and minerals. Inside the endosperm lies
TAe Food We Eat 101<br />
the germ, the embryonic plant which, if lefi to its own<br />
devices, would use the endosperm as food to fuel its<br />
growth into a little seedling. The germ contains protein,<br />
fatty acids and is a storehouse of minerals and vitamins,<br />
particularly vitamin E. Protecting the grain is a tough coat<br />
called the husk or bran. This is where we frnd most of<br />
the fibre, including celIulose. The husk also contains a<br />
fair amount of micronutrients, but not as many as the<br />
aleurone layer, the undercoating that lies snugly over the<br />
grain and under the husk. Grains contain a large percentage<br />
of carbohydrate, around 80 per cent. They also<br />
contain a little more than 10 per cent protein and are in<br />
general very low in fat, at about 2 per cent.<br />
Flour power<br />
Grains, also known as cereals, are the seeds of grasses. As<br />
hunters and gatherers thousands of years ago, we gathered<br />
these wild grass seeds, in addition to the roots, leaves,<br />
flowers, fruits, insects and odd rodent that crossed our wandering<br />
path. The wild grasses of yesteryear were very different<br />
from the lush ears of corn and wheat we cultivate today.<br />
It would have been slim pickings indeed. Not only would it<br />
have been time consuming to gather these seeds but they are<br />
virtually inedible in the raw state. So, we would have had to<br />
lug these seeds on our 40 kilometre walk (the estimated daily<br />
average distance covered by our fit ancestors) and at the end<br />
of a long day, grind the pesky seeds on a bit of rock, then<br />
add water, then cook it over the coals. Pass the insects please.<br />
So much less trouble.<br />
Nevertheless, someone was keen to eat their wheaties.<br />
Humankind became 'civilised' when it began to cultivate<br />
grain around 10 000 to 15 000 years ago. Sowing seeds in the
102 The Commonsense Ggide to <strong>Eating</strong> <strong>Well</strong><br />
ground meant that we had to hang around until harvest time.<br />
Houses, villages and cities were a natural progression. For the<br />
first time we could store food, in 'granaries'. This gave us<br />
time for other pursuits like organised religion, literature,<br />
flower arranging and war. People who controlled the grain,<br />
controlled society.<br />
The symbolism of agriculture has deeply permeated<br />
human consciousness. The Greek goddess Demeter was in<br />
charge of the harvest; Egyptians revered Osiris, the god of<br />
agriculture.<br />
White is Aght?<br />
The first grainy foods would have been gruels or porridges<br />
or flat breads: the whole grain broken up <strong>with</strong> primitive<br />
mortar and pestle. Then came rotary stone mills, driven by<br />
water, slave or horsepower. Steel roller milling came <strong>with</strong> the<br />
industrial revolution and this is where the trouble began. Up<br />
until this time, it was very difficult to separate the chaff (bran<br />
and germ) from the rest of the flour. So breads were invariably<br />
wholemeal. When processing technology became widespread,<br />
a more refined, whiter, fluffier bread was achievable<br />
and, for the first time, affordable. The common man enthusiastically<br />
embraced white bread that was formerly reserved<br />
for the toffs on the hill, the upper crust!<br />
Unfortunately, we now know that removing the bran and<br />
the germ also removes a good proportion of fibre and micronutrients<br />
(see the table below). In addition, bleach is added<br />
to make white flour whiter. Check your labels: 'bread-making<br />
flour' means white wheat flour.<br />
Mfcronutdent losses when the germ and bran<br />
are removed:<br />
B1 80% Copper 68%<br />
B2 65% Iron 76%
T4e Food We Eat 103<br />
B3<br />
B5<br />
B6<br />
B9<br />
Calcium<br />
Chromium<br />
Cobalt<br />
75% Magnesium 85%<br />
50% Manganese 86%<br />
78% Molybdenum 48%<br />
67% Phosphorus 71%<br />
60% Potassium 77%<br />
40% Sodium 78%<br />
89% Zinc 78%<br />
Gluten<br />
Gluten is found in several grains, including wheat, rye,<br />
barley and oats. Gluten gives flour strength, biding<br />
quality and elasticity: all desirable qudties in bread,<br />
pasta and pastry making. Coeliac (see-lee-ak) disease is<br />
a condition where gluten causes damage to the Iining of<br />
the intestines. In its most severe form, coeliac affects<br />
1 in 2000 people and is a condition that is oilen inherited.<br />
Although only a tiny proportion of people have<br />
coeliac disease proper, many more people may be<br />
sensitive or slightly intolerant to gluten. Symptoms<br />
often include bloating, flatulence and constipation or<br />
diarrhoea.<br />
WHEAT<br />
Wheat is the most commonly consumed grain in Australia.<br />
On average Australians eat 1.5 kilograms of wheat flour each<br />
week, mostly in the form of bread, breakfast cereals, biscuits<br />
and pasta. There are two main types of wheat: Triticzcm<br />
vaCgare (soft) used for bakery items and breads; and 2". dumm<br />
(hard) used for pastas and crusty Italian-style breads. Nutritionally,<br />
they are very similar but hard wheat contains slightly<br />
more protein. Wheat contains the most gluten of all the
104 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
grains, which helps it rise in baking. Some people are allergic<br />
to the gluten in wheat, others to other parts of the wheat<br />
grain itself.<br />
Wheat does not have to be made into flour, other products<br />
that are wheat based include:<br />
bulgur - here the wheat grain has been debranned, parboiled,<br />
dried and cracked: the crunchy bits found in<br />
tabouleh and kebbeh are bulgur;<br />
semolina - the hard part of durum wheat;<br />
cous cous - processed from semolina; and<br />
matzo meal - flour used to make unleavened bread during<br />
Passover.<br />
RICE<br />
Rice is the staple food for half the world's population. While<br />
people in Bangladesh eat 65 kilograms of rice yearly, Australians<br />
average a measly 5.6 kilograms a person. Rice is a<br />
balancing grain. This doesn't mean you can hold a bowl of<br />
rice on your head and not let it topple, but that rice helps<br />
balance an under- and over-stimulated system. Brown rice is<br />
the whole grain, high in fibre, vitamins and minerals. White<br />
rice has been rumbled by sugar granules to remove the outer<br />
husk, in addition to the aleurone (vitamin and mineral-rich)<br />
layer, while a portion of the germ remains. Converted rice<br />
(Sungold) is steamed and dried before milling, allowing<br />
the aleurone layer to remain and is therefore higher in<br />
micronutrients.<br />
There are hundreds of varieties of rice, including basmati<br />
and jasmine. Nutritionally, they are similar. There is no<br />
gluten in rice. Rice cakes, which look and taste much like<br />
drink coasters, are brown rice that has been heated to 200<br />
degrees Celsius for six seconds.
The Food We Eat 105<br />
WILD RICE<br />
Wild rice is not actually a type of rice but a grain in its own<br />
right, <strong>with</strong> the exotic botanical name of Zizania apuatica. Traditionally<br />
gathered by hand in waterways by the North American<br />
Indians, wild rice is high in protein, and can be cooked<br />
together <strong>with</strong> brown rice or other grains. Wild rice does not<br />
contain gluten and is a low-allergy food.<br />
BARLEY<br />
Pliny wrote that Roman gladiators were called 'Hordearii' or<br />
barley eaters, believing that the barley they ate made them<br />
strong. You don't see barley much nowadays except in homemade<br />
soup. The soluble fibre in barley helps lower blood<br />
cholesterol. It is used medicinally because of its anti-inflammatory<br />
and cooling properties. A valuable remedy for the<br />
treatment of the symptoms of cystitis (a bladder inflammation)<br />
is to simmer 50 grams of barley in 1 litre of water for<br />
40 minutes. Strain, add lemon and honey. (Barley water will<br />
help to relieve the discomfort of cystitis but will not get rid<br />
of an infection.)<br />
Pot barley is the whole grain, which is very hairy. Pearl<br />
barley is more commonly used, and has the husk removed.<br />
Roasted barley is used as a coffee substitute, often <strong>with</strong><br />
chicory added.<br />
Barley contains gluten, although not in significant<br />
quantities.<br />
RyE<br />
Rye is a cold-climate grain, which explains its popularity in<br />
northern Europe. Its high water-binding capacity keeps rye<br />
bread moist for longer and increases satiety (sense of fullness).<br />
Rye contains gluten, though not quite as much as<br />
wheat. Most light 'rye' breads contain as little as 30 per cent<br />
rye flour, the rest being white wheat flour. One hundred per
106 The Commonsense Gzlide to <strong>Eating</strong> WeZ.2<br />
cent rye bread is very dark, very heavy and has a distinctive,<br />
earthy flavour. Pumpernickel is a type of bread made <strong>with</strong><br />
whole grains of rye.<br />
In the days before pesticides and fungicides, rye crops<br />
were susceptible to a type of fungus known as black sclerotia<br />
or ergot. <strong>Eating</strong> grain infected by this fungus caused a condition<br />
called St Anthony's Fire. Symptoms included burning<br />
pains in the arms and legs, gangrene, itching and hallucinations.<br />
There have been no reported incidences of St Anthony's<br />
Fire since the 1950s. However, research has shown that<br />
one of the derivatives of ergot is lysergic acid (LSD), which<br />
explains the hallucinations!<br />
OATS<br />
Oats are fed to horses to give them pep and they will do the<br />
same for humans who are down on their pep. Oats are one<br />
of the fattier grains, although by no means high in fat at 8<br />
per cent. The fats are the good, essential fatty acids (see page<br />
52) and are especially good for the skin when taken internally<br />
and externally. Dry skin and eczema will respond well to oats.<br />
To make an oat sock for use in the bath or shower, take one<br />
sockette, fill <strong>with</strong> two handfuls of oats, then tie off the open<br />
end. The slimy, sticky stuff that exudes from the stocking<br />
material is very soothing for the skin and can be used instead<br />
of soap.<br />
Rolled oats are the most common form of eating oats. The<br />
whole grain is simply steamed and flattened. It is worth the<br />
expense to get really good organically grown fresh oats.<br />
Compare them <strong>with</strong> your supermarket version, which can<br />
then be relegated to filling the oat sock.<br />
CORN<br />
Corn is the major grain of Central America and Africa, where<br />
it is called mealie. In Australia, we normally use the fresh
The Food We Eat 107<br />
corn as a vegetable, reserving the dried ground flour for<br />
Mexican dishes like tortillas or in the making of polenta.<br />
Other grains include the following:<br />
Triticale is a hybrid of wheat and rye that was developed in<br />
1964. As a plant it thrives on sandy, low-fertility soils and is<br />
resistant to disease. It is high in protein, but seldom seen.<br />
Triticale contains gluten.<br />
Amaranth was the staple grain of the Aztec people. Cultivation<br />
was banned in 1519 by the invading Spaniards in a<br />
devastating example of economic imperialism.<br />
Millet is still the major grain of northern China. We call it<br />
birdseed. It is quick to cook but fairly bland.<br />
Buckwheat is not, botanically, a grain but for all intents and<br />
purposes is treated as one. A member of the rhubarb and<br />
sorrel family, buckwheat has a distinctive nutty flavour.<br />
Although it does not contain gluten, buckwheat flour is often<br />
used to thicken soups and sauces. In Russia, the whole grain<br />
is cooked, called kasha and eaten as a side dish to the main<br />
meal. A northern European Jewish delicacy are blintz (or<br />
blinis), little pancakes made from buckwheat flour, wrapped<br />
around fruit and cream. The Japanese created soba noodles<br />
from buckwheat flour.<br />
Breakfast cereals<br />
Apart from bread and pastry, the most common form<br />
in which we consume grain is in breakfast cereals. The<br />
first breakfast cereal would have been a humble gruel<br />
or porridge. However, since early this century breakfast<br />
cereals have become crisp, coloured, sugared and<br />
heavily advertised.<br />
W1th the exception of one or two, breakfast cereals<br />
are a waste of time, money and nutritional space. The<br />
majority contain sugar, some as high as 44 per cent.
108 The Commonsense Guide to <strong>Eating</strong> Wet!.<br />
They are mostly made from processed flour that has<br />
been stripped of its rnicronutrients, manufacturers kindly<br />
returning one or two of the many they have removed.<br />
You are much better off having baked beans on<br />
wholemeal toast, egg, sardines or even last night's Ieftovers.<br />
However, things started well in the 1800s, when<br />
nutritional advocate and Seventh Day Adventist, Sylvester<br />
Graham, started to promote the health-giving qualities of<br />
wholemeal flour. (In fact, wholemeal flour was dubbed<br />
Graham flour in his honour.) The first breakfast cereal,<br />
Post Grape Nuts, was created in 1863 and was baked<br />
Graham flour, cracked and served <strong>with</strong> milk. In 1877,<br />
another Seventh Day Adventist, Dr Harvey Kellogg, produced<br />
Granola and in 1902 the fvst corn Bake was born.<br />
Things went downhill from there.<br />
Fruit contains fructose, a simple sugar that is one-and-a-half<br />
times as sweet as glucose. Surprisingly, fructose causes blood<br />
sugar levels to rise more slowly than glucose. For this reason,<br />
fruit can be included in the diets of people <strong>with</strong> blood sugar<br />
problems, including diabetes and hypoglycaemia and makes<br />
a good, between-meal snack.<br />
It is preferable to eat the whole fruit rather than just the<br />
juice of the fruit. For starters, there is more fibre in the whole<br />
fruit, allowing you to feel fuller than just drinking the juice.<br />
Let your hair down and try to eat the seeds, core and skin if<br />
possible.<br />
Eat plenty of fruit, two to three servings a day. Don't,<br />
however, overindulge, and end up like poor Fortunatus, at a<br />
banquet in the first century AD: 'First I was those
The Food We Eat 109<br />
sweet fruits the common people called peaches; they never<br />
tired of serving them to me, and I never tired of eating them;<br />
soon my stomach was distended like that of a woman about<br />
to give birth; I wondered how it was that I could stretch so<br />
far. Thunder growled and rolled <strong>with</strong>in me, wandering in my<br />
entrails. There was great wind.' Fortunatus was the chaplain<br />
to Queen Radegonde of Germany.<br />
Stewing fruit is a forgotten art of winter. Not only does it<br />
make your home smell loved, stewed fruit is calming and an<br />
excellent food for stress. Pears, apples, peaches, apricots and<br />
quinces do very nicely stewed. Half fill a large pot <strong>with</strong> water,<br />
add a few spoonfuls of honey, some cardamon pods, a cinnamon<br />
stick and a few cloves. Wait for the water to reach the<br />
boil, take the pot away from the stove then place your fruit,<br />
cheek by cheek, nearly submerged. Put the lid back on the<br />
pot and let the fruit sit there steaming quietly at excessively<br />
low heat for two or so hours.<br />
Dried fruits are energy packed and make a good snack<br />
food when combined <strong>with</strong> a few raw nuts and seeds.<br />
Unfortunately, fruits are ofien dried <strong>with</strong> sulphur dioxide.<br />
Some people are allergic to sulphur and their symptoms<br />
may include asthma, eczema and in extreme cases, a<br />
nasty closing of the throat. Buy sun-dried fnrits if you<br />
are sulphur sensitive. Another packaging trick is to add<br />
mineral oil to sultanas and raisins to make them look<br />
moist. Don't be fooled. Buy naturally dried sultanas from<br />
the health food store. They taste better anyway.<br />
,<br />
APPLE<br />
Snow White and William Tell knew about them, even Eve<br />
couldn't resist munching on one. Apples are strewn through
110 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
human history, rich <strong>with</strong> symbolism. When an apple is cut in<br />
half horizontally you can see a five-pointed star, the pentagram,<br />
the geometric shape that sends witches and warlocks<br />
into an esoteric frenzy.<br />
Apples contain pectin, particularly around the core. Pectin<br />
is a soluble fibre that helps restore healthy microflora in the<br />
bowel, as well as removing excess cholesterol from the body.<br />
Apple cider vinegar in hot water is an old Vermont remedy<br />
for arthritis. Dab a bit of neat apple cider vinegar on bites<br />
and stings to reduce itching and inflammation. An oldfashioned<br />
cure for diarrhoea is to grate an apple (green or<br />
red) and eat it after it turns brown.<br />
APRICOT<br />
Apricots are a sunny cousin of the almond, cherry, peach and<br />
plum. Apricots are a good source of potassium, magnesium,<br />
iron and beta-carotene.<br />
AVOCADO<br />
The avocado is actually a fruit but most people think of it as<br />
a vegetable. A native to Central America, the creamy flesh of<br />
the avocado has seduced palates worldwide. Avocados are one<br />
of the few plant foods that contain fat, around 20 per cent.<br />
This is because avocado chooses to store energy as fat, rather<br />
than in the usual form, starch. Don't be put off, the fat in<br />
avocados gives us an opportunity to benefit from the lovely<br />
essential fatty acids, as well as providing us <strong>with</strong> vitamin E.<br />
Avocados are terrific for dry skin problems.<br />
BANANA<br />
Bananas are the favourite of babies and grannies and make a<br />
mean daiquiri too. Did I say daiquiri? I meant smoothie. Full<br />
of potassium, 440 milligrams a pop, bananas are. filling<br />
<strong>with</strong>out being fattening.
The Food We Eat 111<br />
Bananas, particularly those on the green side, are very good<br />
for healing ulcers of the digestive tract, including stomach<br />
ulcers and ulcerative colitis.<br />
BERRIES<br />
Strawberries, raspberries, blueberries, blackberries. The<br />
vibrant colours of berries are due to a group of pigments<br />
called flavonoids, which are potent antioxidants.<br />
CHERRY<br />
Cherries, <strong>with</strong> their beautiful red colouring, are another fruit<br />
<strong>with</strong> plenty of the antioxidant-rich flavonoids, including<br />
anthocyanin. In fact, that's where they get their blue-red<br />
colour from.<br />
DATE<br />
Dates, palms, deserts and desserts go together. Most often<br />
eaten dried, dates are a delicious fruit packed full of fruit<br />
sugar and fibre. Dates satisfy even the hardened sweet tooth.<br />
FIG -<br />
Figs are native to the Middle East (the first tree mentioned<br />
in the Bible) but are equally popular in Greece, Portugal and<br />
Spain. Figs are available fresh or dried, tasting not a bit alike.<br />
Figs are rich in a range of micronutrients, including calcium,<br />
magnesium, iron, copper and manganese. All those little<br />
seedy things in the middle are good fibre.<br />
GRAPEFRUIT<br />
Grapefruits are high in pectin, a soluble fibre, found in the<br />
pithy white bits most of us pick off. Pectin lowers cholesterol<br />
levels and helps remove heavy metals from the body. Grapefruit<br />
is also bitter, making it an excellent tonic for the liver<br />
and gall bladder.
112 The Commonsense Gzlide to <strong>Eating</strong> <strong>Well</strong><br />
GRAPE<br />
Grapes are one of the oldest cultivated fruits. Grape seeds<br />
have been found to have high levels of the flavonoid proanthocyanidin,<br />
which is an antioxidant and is particularly good<br />
for the blood vessels. So stop spitting them out.<br />
LEMON<br />
Lemons contain vitamin C. Their sourness complements liver<br />
function and a substance in lemons called limonene has been<br />
found to be useful in treating gallstones. The juice of half a<br />
lemon in hot water makes a good first-thing-in-the-morning<br />
drink, <strong>with</strong> or <strong>with</strong>out honey.<br />
MANGO<br />
Mangoes are a good source of fibre, vitamin C, potassium and<br />
beta-carotene. No-one has yet found the substance that<br />
makes mangoes addictive, but each summer, hundreds of<br />
thousands of Australians diligently apply their research skills<br />
to this question.<br />
ORANGE<br />
Oranges are a good source of vitamin C, soluble fibre, potassium<br />
and folic acid. Watch the allergy factor. If you have<br />
oranges every single day and have a health problem such as<br />
eczema, cut out the oranges (yes that includes OJ) for a week<br />
or two and see if your symptoms improve. If they don't, then<br />
you're welcome to go back to your oranges. Sometimes the<br />
allergy can be due to preservatives in the orange juice. In<br />
Europe in the nineteenth century, poor children dreamed all<br />
year of receiving an orange for Christmas. It is easy toforget<br />
how lucky we are in Australia, <strong>with</strong> our fantastic range of<br />
produce.
The Food We Eat 113<br />
PEACH<br />
Native to China, basically yummy when ripe and reminds one<br />
of summer; also a good source of potassium and flavonoids.<br />
In Edwardian England, the peach was a symbol of virginity,<br />
hence the term 'she's a peach'.<br />
PEKR<br />
Having been hired to talk to 54 radio stations about pears, I<br />
feel I am in a unique position to tell you pears contain the<br />
most fibre of any fruit. They are also a low allergy fruit.<br />
Thank you.<br />
PLUM AND PRUNE<br />
Any dark-coloured fruit (unless they are dark because they<br />
are bruised) is bound to be a good source of the flavonoids.<br />
Plums are no exception. Prunes are dried plums and are the<br />
darlings of hospitals and convalescence homes due to their<br />
laxative effect. Both are a very good source of potassium and<br />
iron.<br />
TOMATO<br />
Tomatoes are actually a fruit but are happy to join the<br />
vegetable camp. Another member of the deadly nightshade<br />
family, tomatoes can be an allergy food. Containing the antioxidant<br />
lycopene, four servings of tomatoes (including sauce)<br />
a week is helpful in reducing the incidence and severity of<br />
prostate cancer.<br />
Pasta would be unthinkable <strong>with</strong>out a tomato-based sauce.<br />
But it was not until after the discovery of America that tomatoes<br />
found their way into the kitchens of Europe and Italy in<br />
particular. And stayed there.
The Food We Eat 113<br />
PEACH<br />
Native to China, basically yummy when ripe and reminds one<br />
of summer; also a good source of potassium and flavonoids.<br />
In Edwardian England, the peach was a symbol of virginity,<br />
hence the term 'she's a peach'.<br />
PEKR<br />
Having been hired to talk to 54 radio stations about pears, I<br />
feel I am in a unique position to tell you pears contain the<br />
most fibre of any fruit. They are also a low allergy fruit.<br />
Thank you.<br />
PLUM AND PRUNE<br />
Any dark-coloured fruit (unless they are dark because they<br />
are bruised) is bound to be a good source of the flavonoids.<br />
Plums are no exception. Prunes are dried plums and are the<br />
darlings of hospitals and convalescence homes due to their<br />
laxative effect. Both are a very good source of potassium and<br />
iron.<br />
TOMATO<br />
Tomatoes are actually a fruit but are happy to join the<br />
vegetable camp. Another member of the deadly nightshade<br />
family, tomatoes can be an allergy food. Containing the antioxidant<br />
lycopene, four servings of tomatoes (including sauce)<br />
a week is helpful in reducing the incidence and severity of<br />
prostate cancer.<br />
Pasta would be unthinkable <strong>with</strong>out a tomato-based sauce.<br />
But it was not until after the discovery of America that tomatoes<br />
found their way into the kitchens of Europe and Italy in<br />
particular. And stayed there.
114 The Commonsense Gzlide to <strong>Eating</strong> WeCl<br />
WATERMELON<br />
Watermelons, as the name implies, are mostly water. They<br />
make a very good tonic for the kidneys and bladder.<br />
.<br />
Milk<br />
Paradise lost<br />
Milk is the perfect food, containing protein, fat, carbohydrate,<br />
vitamins and minerals - all the nutrients mammals (animals<br />
<strong>with</strong> breasts) need to sustain them through babyhood and<br />
early growing years. Unfortunately, for many people milk<br />
causes health problems.<br />
Use it or lose It<br />
Humans are the only mammals who continue to drink milk<br />
after being weaned. Your pussy cat may enjoy (or demand) a<br />
saucer of milk but in the wild, puss wouldn't touch the stuff.<br />
Lactase, the enzyme responsible for digesting milk sugar<br />
(lactose), diminishes at around the time we lose our 'milk<br />
teeth' at five to seven years old. Another enzyme, rennin,<br />
which digests the milk protein casein in the stomach, also<br />
diminishes at this time. Although this is true for the majority<br />
of people, milk-digesting enzymes remain more active in<br />
some races, especially people of Scandinavian origin. Classically,<br />
the case of 'use it or lose it', Nordic folk have a long<br />
history of farming moocows and eating dairy products. Over<br />
trhe generations, their physiology has adapted to a diet that<br />
contains lots of cheese and milk.<br />
Among my patients, I find that if someone has Danish,<br />
Dutch or Swedish blood in their veins, they usually thrive on<br />
milk products, whereas someone of Asian descent should<br />
invariably avoid milk.
The Food We Eat<br />
I15<br />
Horses for courses<br />
What are humans drinking cow's milk for in the first place?<br />
Although we have established that milk is a perfect food, we<br />
need to be clear about whose milk is good for whom. Goat's<br />
milk is perfect for kids; cow's milk is perfect for calves; and<br />
human milk is perfect for human babies. So far, supermarkets<br />
have not seen the marketing potential of selling bottled<br />
human milk.<br />
In terms of infant survival, obviously any milk is better<br />
than no milk. My neighbours rescued a kitten who was<br />
dumped and left to die. Their 14-year-old female Dachshund,<br />
Koo, who had her last litter 10 years ago, started to secrete<br />
milk to feed the kitten. The kitten, Smudge, is flourishing<br />
on Koo's doggy milk!<br />
Here are a few interesting points of comparison between<br />
cow and human milk. First, cow's milk has more than four<br />
times more calcium and protein per millilitre than human<br />
milk. However, more is not necessarily better. A calf doubles<br />
its birth weight in 50 days, whereas babies double their birth<br />
weight in 100 days. Our early development is more skewed<br />
towards nourishing the nervous system rather than bulk.<br />
Second, there are two main types of protein in milk, casein<br />
and whey, which translate into little Miss Muffet's curds and<br />
whey. Cow's milk contains more casein than whey and<br />
human milk contains more whey than casein. People <strong>with</strong><br />
milk allergy tend to be more allergic to casein than whey. It<br />
turns out the balance of essential fatty acids (EFAs) found in<br />
human breast milk is terribly important for the neurological<br />
development of infants. Pre-term babies fed on formula can<br />
become blind and neurologically deficient, and can have<br />
measurable IQ differences.
lf 6<br />
The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
What's the problem?<br />
With milk there are two possible problems. The first is a milk<br />
sugar (lactose) intolerance; the second a milk protein allergy.<br />
In order to be absorbed, lactose (a disaccharide) needs to<br />
be snipped into two separate units: glucose and galactose.<br />
The enzyme lactase is just the man for the job. If lactase is<br />
not available, lactose cannot be broken down and absorbed<br />
and will continue down the bowel. Water will enter the bowel<br />
to dilute the sugar, causing diarrhoea. In addition, bacteria<br />
will eat the sugar, producing bloating and flatulence. The<br />
symptoms of lactose intolerance are diarrhoea and flatulence.<br />
Ninety-five per cent of Asian people are lactose intolerant,<br />
whereas northern European and Scandinavian races are better<br />
able to tolerate it.<br />
Lactose intolerance is an 'intolerance' to lactose simply<br />
because there are insufficient quantities of the enzyme<br />
lactase to deal <strong>with</strong> it. Milk allergy is a different story. As<br />
previously mentioned, it is the casein in milk that seems to<br />
be the troublemaker. It appears that the immune system of<br />
the sensitive individual will react when a fragment of casein<br />
is absorbed. When the immune system gets involved it is<br />
truly an allergy. The reactions to a milk allergy are not as<br />
immediate as ,that of lactose intolerance. Symptoms fall into<br />
three main groups: skin, mucus and emotional. Skin-related<br />
symptoms are usually eczema or skin rashes. Mucus-related<br />
symptoms can manifest as chronic sinusitis, post-nasal drip<br />
(mucus dripping down the back of the throat) and a constant<br />
stuffed-up nose. Milk allergy also contributes to ongoing<br />
colds, asthma, tonsillitis and glue ear in children. Emotional<br />
symptoms are a lot more difficult to detect.<br />
Addictive allergies<br />
About 10 years ago, a psychologist and nutritionist called<br />
Alexander Schauss researched a group of troubled teenage
The Food We Eat 11 7<br />
boys who were held in detention centres in the United States.<br />
He noticed that all the boys ate a diet very high in milk<br />
products: milk, ice-cream, cheese and chocolate. Schauss took<br />
a number of boys off milk products entirely and found that<br />
<strong>with</strong>in a few weeks their negative and violent behaviour had<br />
changed significantly. On the whole, the boys were calmer<br />
and less angry. This was confirmed by the carers and the boys<br />
themselves. Interestingly, they still craved milk products.<br />
Fascinated by the change, Schauss recorded these results and<br />
developed a theory about addictive allergies.<br />
There are receptor sites in the brain that act like tiny baseball<br />
mitts, which grab a fragment of protein (called endorphins),<br />
like grabbing a baseball. With an addiction, the mitts get desperate<br />
to hold the ball. If there is a shortage of balls - craving<br />
will result. Craving is a sign of physical addiction. The milk<br />
protein fragments, Schauss believes, act in a similar way to the<br />
body's own endorphins, setting up a constant craving for milk<br />
products and mood problems when milk is unavailable.<br />
If milk protein is a problem, avoid yellow cheese, cottage<br />
cheese, ice-cream, whole milk and skim milk (skim milk has<br />
less fat, not less protein).<br />
The olden days: what's changed<br />
Old naturopathic texts recommend raw milk for all sorts of<br />
diseases, including catarrhal or mucus related conditions. Most<br />
modern naturopaths shudder at the thought of milk. Something<br />
must have changed. Pasteurisation has been the law for several<br />
decades (unpasteurised goat's milk is sometimes available).<br />
Pasteurisation, named for Louis Pasteur who confirmed the<br />
presence of disease-causing germs, involves heating milk at<br />
62 degrees Celsius for 30 minutes. This will kill most bugs.<br />
Formerly, milk was frequently infected <strong>with</strong> diseases including<br />
tuberculosis, which could be transmitted throughout the community.<br />
Although there have been no modern studies to my
118 T4e Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
knowledge comparing the difference between pasteurised and<br />
non-pasteurised milk on our health, the intense heating of milk<br />
may change its protein structure, possibly increasing the likelihood<br />
of milk allergy in the sensitive individual.<br />
Another, more recent process is homogenisation, the breaking<br />
up of fat so that fat droplets are evenly distributed<br />
throughout the milk. Cream no longer floats to the surface of<br />
the milk bottle to be a treat for your cat; even the bottle has<br />
gone! Homogenisation increases the rate at which milk goes<br />
off due to the increased surface area of the fat droplets. There<br />
are raised levels of the enzyme xanthine oxidase, which has<br />
been implicated in atherosclerosis.<br />
Antibiotics, pesticides and hormones can all be detected in<br />
milk, due to today's intensive farming techniques, adding to<br />
our chemical burden.<br />
What to do<br />
When it comes to food allergies there appears to be a threshold.<br />
If you are travelling well health-wise, you might be able<br />
to deal <strong>with</strong> one or more servings of milk products but when<br />
the immune system is under challenge, whether it be from<br />
stress or infection, you will not be able to tolerate the same<br />
amount of milk products and they are best avoided at this<br />
time. Get to know the signs from your body. Stay away from<br />
known food allergens, including milk, when you know your<br />
body is under extra stress (see tailor-made for food allergies,<br />
page 205).<br />
Yoghurt<br />
Even if you are sensitive to milk, you may be able to tolerate<br />
small amounts of yoghurt. The bacteria that make yoghurt<br />
feed on the lactose, so already we have reduced one problem.<br />
In addition, the bacteria excrete lactic acid, which changes<br />
the protein structure slightly, so that it presents less of an
The Food We Eat 119<br />
allergic challenge. The best yoghurt to choose is plain, not<br />
flavoured, made <strong>with</strong> acidophilus, bifidus or bulgaricus<br />
bacteria.<br />
Sheep and goat's milk<br />
Still the milk of choice in several European rural communities,<br />
sheep and goat's milk tend not to cause as many allergy<br />
problems as cow's milk (although the lactose levels are the<br />
same). Goat's milk is an acquired taste but the cheese is quite<br />
delicious. Sheep's milk takes less getting used to but is<br />
harder to come by in delis and healthfood shops. However,<br />
the yoghurt is more readily available and is yummy.<br />
Soy milk, dce milk, almond milk<br />
Soy milk has many benefits, not least by providing the phytooestrogens<br />
(see soy, page 124). However, soybeans do not<br />
have breasts. Soy milk, or any other 'milk' derived from a<br />
seed, nut or grain, is not the same as milk from a mammal.<br />
They do provide certain nutrients but should not be considered<br />
as a total food in the same way as animal or human milk.<br />
This is particularly important for babies and young children.<br />
In addition, many people are now becoming allergic to soy<br />
milk if they drink lots of it.<br />
Mtfk and osteoporos~s<br />
Calcium is important for bones and in the prevention of<br />
osteoporosis, a common problem among women and,<br />
increasingly, men in Australia. Calcium is a mineral available<br />
from a variety of foods, not just milk products.<br />
Interestingly, in countries like China, which traditionally<br />
do not have d k in their diet, osteoporosis is not a significant<br />
health problem. The Beijing Osteoporosis Prow<br />
1996 concluded that 'hip fracture rates (usually caused
120 The Commomense Guide to <strong>Eating</strong> <strong>Well</strong><br />
by osteoporosis) in Beijiig are among the lowest in the<br />
world'.<br />
Over- 60 per cent of Australian women consume<br />
less thah the recommended daily amount of calcium.<br />
Although milk is a reliable source there are many other<br />
foods that provide calcium.<br />
The following is a list of non-dairy, calcium-fich foods:<br />
Nlflllgrams of calcfam per cup<br />
Sesame seeds 2100<br />
Sardines <strong>with</strong> bones 1000<br />
Almonds 750<br />
Chestnuts 600<br />
Salmon <strong>with</strong> bones 490<br />
Molasses 410<br />
Tofu 400<br />
Cooked spinach 250<br />
Oysters (6) 240<br />
Figs (5) 126<br />
Beans<br />
Legumes, also known as beans or pulses, have been around<br />
gastronomically much longer than grains. Currently, however,<br />
beans are not in favour, which is a great shame as they have<br />
much to offer nutritionally, being low in fat and high in fibre,<br />
protein and micronutrients. Beans have the same calories as<br />
grains but four times the protein. Beans are high in soluble<br />
fibre, which means they help lower cholesterol, reduce the<br />
risk of heart dhease, prevent constipation and stabilise blood<br />
sugar levels.<br />
Quite possibly, the bean's relatively recent fall from grace
The Food We Eat 121<br />
is due to a combination of factors. One is the reduction of<br />
available time for pottering around the kitchen. Beans take<br />
some time to cook. The second reason may be cultural; the<br />
fading of traditional recipes over the generations. Many cuisines<br />
have great bean dishes such as the Greek dip sava, the<br />
Italian lentil soup lenticce and, of course, the Mexican refried<br />
beans.<br />
Beans can be stored for a long time in your cupboard and<br />
retain most of their nutrients during storage and cooking. In<br />
fact, beans have to be cooked. Trypsin inhibitors are on the<br />
outside of legumes. Thought to be the legume's protection<br />
against digestion by birds and other animals, trypsin inhibitors<br />
stop the action of trypsin, a protein-digesting enzyme.<br />
Without trypsin, the bean cannot be properly digested.<br />
Trypsin inhibitors can be broken down by soaking, then<br />
cooking the legume.<br />
Canned beans are a time-saving alternative to soaking and<br />
cooking beans yourself. For example, adding a can of kidney<br />
beans to a little bolognaise sauce increases the fibre, or adding<br />
a can of beans to a vegetable soup lifts the protein content<br />
considerably.<br />
Beans means farts<br />
Beans are accused of causing flatulence. Humans pass<br />
wind 14 times daily, on average 600 milIiIitres of gas,<br />
most of which is swallowed air. The rest comprises 40<br />
per cent carbon dioxide produced by gut bacteria, 10<br />
per cent hydrogen, methane, sulphur and by-products<br />
of bacteria, including skatoles, ammonia and hydrogen<br />
sulphide (rotten egg gas). So where do beans fit in?<br />
Beans contain oligosaccharide - a type of starch that is<br />
resistant to digestion. As the oligosaccharides pass<br />
through the small intestine to the colon, resident bacteria
122 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
will break them down and cause gas. People who are<br />
used to legumes in their diet will, over time, produce<br />
microflora that are less likely to cause the problem of<br />
excess flatulence. So the more beans you eat, the less<br />
flatulence you will have.<br />
ADZUKI BEANS<br />
Also known as red beans, adzuki beans are a favourite in<br />
Japan. This small, round, reddish-brown bean has a light,<br />
nutty, sweet flavour. It is often made into candied bean cakes.<br />
Although it tastes sweet, this bean helps regulate blood sugar<br />
levels. Since the Han Dynasty in China (206 BC to AD 220),<br />
the red bean has meant good luck and so is always included<br />
in any festive meal. Dried beans are put out to ward off evil<br />
spirits at Chinese New Year.<br />
BLACK BEANS<br />
Black beans are used in South American and Caribbean<br />
cooking. They form the basis for the salty, fermented and<br />
yummy Chinese black bean sauce.<br />
BORLOTTI BEANS<br />
Borlotti beans are brown or speckled pink and also travel<br />
under the name Romano. They are native to tropical America<br />
and were introduced to Europe via the Spaniards. In 1528,<br />
some of these beans were sent to Pope Clement VII in Italy,<br />
possibly the first beans in Italy. Borlotti beans are popular in<br />
Italian soups and stews to this day.<br />
BROAD BEANS<br />
Broad beans are also known as fava, and were first cultivated<br />
during the Iron and Bronze ages. They were the staple food
The Food We Eat 123<br />
for the poor in ancient Egypt. In ancient Rome, dry broad<br />
beans were used as counters for voting in Roman elections.<br />
Broad beans can be eaten green and uncooked, however, they<br />
may cause a form of anaemia known as favism in some Mediterranean<br />
people <strong>with</strong> a special sensitivity to a toxin found<br />
in the beans.<br />
CHICKPEAS<br />
Chickpeas or garbanzos are a round, light brown-coloured<br />
bean <strong>with</strong> a chicken-beak point at one end. They are a<br />
favourite throughout the Middle East, India, Spain, Italy and<br />
Greece. Hommos, felafel and besan flour are all chickpea<br />
products. Dry roasted chickpeas flavoured <strong>with</strong> salt, spices<br />
and chilli are a popular snackfood in India.<br />
HARICOT BEANS<br />
These are the common garden variety baked bean or navy<br />
bean. Canned baked beans are a staple food for many single<br />
young men. Haricot beans make a quick, high protein, low<br />
fat breakfast or snack.<br />
KIDNEY BEANS<br />
Kidney beans are best known for their leading role in chilli<br />
con carne and as a support act in three-bean mix.<br />
LENTILS<br />
Lentils are called lentils because their shape resembles the<br />
lens of the eye. Lentils, whether they are red, green or brown,<br />
are big news in India where they form the basis of dhal.<br />
Lentils need no soaking and cook in around 20 minutes.
124 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
PEAS<br />
Peas are legumes. We normally eat them fresh or thawed,<br />
reserving the split dried peas for pea and ham soup. The olde<br />
English 'pease pudding' featured split peas.<br />
SOYBEANS<br />
The soybean is native to China, where it has been cultivated<br />
for 13 000 years. It is the most widely grown and utilised<br />
legume and is the biggest cash crop in United States, used<br />
mostly as feed for livestock. Soybeans contain more oil than<br />
most beans; around 17 per cent of the dried bean. But the<br />
fat is good fat, high in the essential fatty acids.<br />
One of the main reasons for soy's popularity (it can't be<br />
the taste), is that soybeans have the highest protein content<br />
of any plant food, exceeding many animal foods.<br />
Soybeans have received a lot of attention because they<br />
contain the isoflavone genistin, a plant substance that is structurally<br />
similar to but much weaker than oestrogen, and is<br />
actually able to bind onto oestrogen receptor sites in the<br />
body. This is a boon for menopausal women who are running<br />
low in their own oestrogen (see tailor-made menopause diet,<br />
page 209). The beauty of phyto-oestrogens is that if you are<br />
making sufficient oestrogen, they won't be adding any more.<br />
Our own oestrogen is stronger by far. Phyto-oestrogens only<br />
make up any shortfall.<br />
Value-added soy<br />
A 'second generation' soy product is tofu or beancurd.<br />
This white, fm (or floppy), custard-like preparation is<br />
as boring as batshit unless dolled up <strong>with</strong> spice or<br />
hidden in a stew or stir-fn( but is very high in protein.<br />
Tofu is made by soaking the soybeans, then draining<br />
them. The beans are then pureed and strained to yield
The Food We Eat<br />
I25<br />
a soybean milk. This is boiled, a coagulant added, then<br />
strained. Tempeh is fermented tofu and is a reliable<br />
source of protein and B12 (good for vegans whose main<br />
source of protein is soy).<br />
Those ghastly sausage-looking things called TVP (textured<br />
vegetable protein) that come in cans are made<br />
from soybeans.<br />
Miso is fermented soy paste made by inoculating<br />
trays of rice <strong>with</strong> the mould Aspergillus oryzae. A ground<br />
preparation of cooked soybeans and salt is then mixed<br />
in and the mass is allowed to ferment for several days<br />
before being ground into a paste that has the consistency<br />
of peanut butter. The entire rniso process takes 10<br />
to 40 days. Miso is used as a fIavouring for soups and<br />
on vegetables. Miso is also nice spread thinly on<br />
wholemeal bread <strong>with</strong> a layer of tahini and sprinkled<br />
sunflower seeds on top. Miso is a source of B 12 as well<br />
as bowel-friendly bacteria.<br />
Sprouts<br />
Sprouts are excellent food. Germination of the seed into<br />
a sprout increases the available nutrients and improves<br />
digestibility. The sight of a few shrivelled alfalfa sprouts<br />
on the side of the plate is enough to put anyone OR. But<br />
eat them anyway. Sprouting deactivates any trypsin<br />
inhibitors that may be present in the raw bean.<br />
If you are clever you can sprout your own. Mime<br />
invariably turn mouldy so I buy them from the supermarket<br />
or greengrocer. If you are game to sprout your<br />
own buy only organic seeds; assume all others have<br />
been sprayed.
126 T&e Commonsense Ggide to <strong>Eating</strong> <strong>Well</strong><br />
Types of sprouts include alfalfa, mung bean, fenugreek<br />
and red clover. Sprouts can be eaten raw or added<br />
to soups and stews.<br />
Meat<br />
There is plenty of evidence humans were born to eat meat.<br />
Look at our canines (teeth, not dogs), meat-stripping stomach<br />
acid, guns and quite a mean streak. Yet we are omnivores, taking<br />
a bet both ways, equipped to handle plant food as well as meat.<br />
Vegetadans, B12, protein and Iron<br />
By combining legumes and grains, vegetarians are less<br />
likely to be protein deficient. The vegetarians most at risk<br />
of deficiencies, especially of B12 and iron, are vegans.<br />
Vegans, oAen inspired by ethical reasons, eat nothing<br />
made from an animal, including miIk products and even<br />
honey. As B12 is made by animals, it is relatively<br />
common for vegans to be low in this vitamin. <strong>Eating</strong><br />
fermented foods such as miso and tempeh (fermented<br />
tofu) is a way of obtaining B12. Taking some vitamin C,<br />
or eating vitamin C-rich food will enhance absorption of<br />
iron from the likes of spinach, parsley and kelp.<br />
BEEF<br />
7<br />
In 1938, the first year of food-consumption statistics, Australians<br />
ate an average of 64 kilograms of beef (including veal)<br />
each. By 1997, we were eating about 39 kilograms a piece -<br />
still quite a lot of cow. The difference in consumption<br />
between the prewar years and now is not that we have turned
into a country of vegetarians but consumption of other meat<br />
has increased, especially chicken and pork.<br />
Beef, like most animal products, is a reliable source of<br />
protein, containing the full spectrum of essential amino acids.<br />
Importantly, beef contains haem iron, the type of iron that is<br />
well absorbed, as opposed to non-haem iron found in vegetables.<br />
Beef contains B vitamins and zinc, a mineral we need<br />
and that is often in short supply. The nutritional down side<br />
to beef is that it contains quite a lot of fat: older cattle more<br />
than yearlings; grain-fed more than those that roam the range.<br />
Beef feedlots are a growing trend in Australia, particularly in<br />
export beef. This practice crowds the cows together in restrictive<br />
feedlots and has been deemed to be cruel by the RSPCA.<br />
LANIB<br />
Lamb contains more fat than beef but is still a terrific source<br />
of protein and iron. Australians eat 11 kilograms of lamb each<br />
per year (1997). Lambs are often born in the bush and for<br />
most of their short lives (less than one year) receive little<br />
intervention from man, until they are killed. Unlike chickens<br />
and pigs, they are free to chew on bits of scrub and are not<br />
routinely given antibiotics or hormones. Lamb is a reasonably<br />
'clean' meat as far as chemicals go, the down side is that there<br />
is more fat by weight than protein.<br />
PORK<br />
Porkers have a tough life, often being confined to small pens.<br />
Pork used to have a bad name because it was likely to be<br />
infected by the parasite trichinosis, but this is no longer a<br />
problem. Pork has quite a following in Australia <strong>with</strong> average<br />
consumption around 18 kilograms each per year. Pork has traditionally<br />
been a high-fat meat, until the use of hormones that<br />
produce leaner pigs - 'low-fat porkers'. We are seeing a lot<br />
more of these technologically enhanced foods. The pigs were
128 Tie Commonsense Gzlide to <strong>Eating</strong> <strong>Well</strong><br />
not given gym memberships to lose weight, they are given<br />
hormones. Being a 'white' meat, pork does not contain as much<br />
iron as beef or lamb, although it is a good source of protein.<br />
DEU MEAT<br />
Bacon, cabanossi, chorizo, frankfurts, kransky, pepperoni,<br />
mortadella, pastrami, devon, salami and ham: all these<br />
yummy deli meats (mostly pig products) are bad news. Sorry.<br />
For starters they are high in fat, an excessive one-and-a-half<br />
times more fat than protein. In addition to lots of salt, nitrites<br />
are added to keep them a pink colour (after all, they are the<br />
product of animals who have been dead for some time).<br />
Nitrites are preservatives that are carcinogenic. Eat deli meats<br />
infrequently. They are not part of a health fest.<br />
GAME: EMU, KANGAROO. VENISON, BUFFALO<br />
Meat from wild(ish) animals is highly nutritious - very low<br />
in fat but a good source of the essential fatty acids, no chemicals<br />
and high in protein. A good choice.<br />
FOWL<br />
Chicken used to be rarer than hen's teeth on the dinner tables<br />
of Australians in the 1950s and 1960s, reserved for festivities<br />
like Christmas and birthdays. Nowadays, we eat an average of<br />
28 kilograms each per year. Most of the fat in chickens is located<br />
under their skin; once removed, chicken is a relatively low-fat<br />
meat, high in protein but relatively low in iron. Unfortunately,<br />
chickens have been taken under Big Brother's wing, so to<br />
speak. They are housed in unspeakable conditions, often<br />
de-clawed and de-beaked. They are routinely fed antibiotics<br />
and hormones. Although more expensive, free-range birds are<br />
available and have fewer chemicals.<br />
Ducks, in comparison <strong>with</strong> chickens, lead charmed lives.<br />
It could be that their nature is less submissive or demand for
The Food We Eat 129<br />
duckmeat is not as high. Duck is slightly higher in fat, particularly<br />
the skin, and high in protein, <strong>with</strong> fewer chemicals.<br />
Those ducks you see hanging upside down in Chinese restaurants<br />
are quite high in fat and are sweetened.<br />
Eggs are a near-perfect food, containing all nutrients required<br />
for the embryonic bird. Chicken eggs are the most commonly<br />
consumed in Australia but duck and quail eggs are also available.<br />
Eggs, unlike meat, contain lots of vitamins and minerals<br />
including zinc, sulphur, vitamin A, choline and so on, in fact,<br />
nearly all of them except vitamin C. They are also relatively<br />
low in fat. Now that the cholesterol issue has been debunked<br />
(see page 56), and as long as your diet is not too high in fat,<br />
you can eat your googie eggs and enjoy them anyway you<br />
want, except fried.<br />
Battery hens are possibly the most badly treated farm<br />
animals. They are de-beaked, de-clawed, fed hormones and<br />
antibiotics and even orange dye is put in their food to make<br />
the yolks look yellower. Make sure you buy your eggs from<br />
chickens that have been well treated. Alternatively, buy them<br />
from shops that sell their eggs. The best are from organically<br />
farmed birds, as 'free range' does not necessarily mean they<br />
are free to range outside, just slightly freer than a tiny cage,<br />
and may well be given the same chemical cocktail as their<br />
penned-in cousins.<br />
Call me old fashioned, but in my book (and by chance,<br />
this is my book!) chickens don't normally eat fish. No<br />
doubt the omega3 eggs are developed in the interest<br />
of good health, but let's leave the omega-3s in fish<br />
where they belong.
128 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
not given gym memberships to lose weight, they are given<br />
hormones. Being a 'white' meat, pork does not contain as much<br />
iron as beef or lamb, although it is a good source of protein.<br />
DELI MEAT<br />
Bacon, cabanossi, chorizo, frankfurts, kransky, pepperoni,<br />
mortadella, pastrami, devon, salami and ham: all these<br />
yummy deli meats (mostly pig products) are bad news. Sorry.<br />
For starters they are high in fat, an excessive one-and-a-half<br />
times more fat than protein. In addition to lots of salt, nitrites<br />
are added to keep them a pink colour (after all, they are the<br />
product of animals who have been dead for some time).<br />
Nitrites are preservatives that are carcinogenic. Eat deli meats<br />
infrequently. They are not part of a health fest.<br />
GAME: EMU, KANGAROO, VENISON, BUFFALO<br />
Meat from wild(ish) animals is highly nutritious - very low<br />
in fat but a good source of the essential fatty acids, no chemicals<br />
and high in protein. A good choice.<br />
FOWL<br />
Chicken used to be rarer than hen's teeth on the dinner tables<br />
of Australians in the 1950s and 1960s, reserved for festivities<br />
like Christmas and birthdays. Nowadays, we eat an average of<br />
28 kilograms each per year. Most of the fat in chickens is located<br />
under their skin; once removed, chicken is a relatively low-fat<br />
meat, high in protein but relatively low in iron. Unfortunately,<br />
chickens have been taken under Big Brother's wing, so to<br />
speak. They are housed in unspeakable conditions, often<br />
de-clawed and de-beaked. They are routinely fed antibiotics<br />
and hormones. Although more expensive, free-range birds are<br />
available and have fewer chemicals.<br />
Ducks, in comparison <strong>with</strong> chickens, lead charmed lives.<br />
It could be that their nature is less submissive or demand for
The Food We Eat 129<br />
duckmeat is not as high. Duck is slightly higher in fat, particularly<br />
the skin, and high in protein, <strong>with</strong> fewer chemicals.<br />
Those ducks you see hanging upside down in Chinese restaurants<br />
are quite high in fat and are sweetened.<br />
Eggs are a near-perfect food, containing all nutrients required<br />
for the embryonic bird. Chicken eggs are the most commonly<br />
consumed in Australia but duck and quail eggs are also available.<br />
Eggs, unlike meat, contain lots of vitamins and minerals<br />
including zinc, sulphur, vitamin A, choline and so on, in fact,<br />
nearly all of them except vitamin C. They are also relatively<br />
low in fat. Now that the cholesterol issue has been debunked<br />
(see page 56), and as long as your diet is not too high in fat,<br />
you can eat your googie eggs and enjoy them anyway you<br />
want, except fried.<br />
Battery hens are possibly the most badly treated farm<br />
animals. They are de-beaked, de-clawed, fed hormones and<br />
antibiotics and even orange dye is put in their food to make<br />
the yolks look yellower. Make sure you buy your eggs from<br />
chickens that have been well treated. Alternatively, buy them<br />
from shops that sell their eggs. The best are from organically<br />
farmed birds, as 'free range' does not necessarily mean they<br />
are free to range outside, just slightly freer than a tiny cage,<br />
and may well be given the same chemical cocktail as their<br />
penned-in cousins.<br />
Call me old fashioned, but in my book (and by chance,<br />
this is my book!) chickens don't normally eat fish. No<br />
doubt the omega-3 eggs are developed in the interest<br />
of good health, but let's leave the omega-3s in fish<br />
where they belong.
130 The Conzmonsen~e Guide to <strong>Eating</strong> <strong>Well</strong><br />
Fish and shellfish<br />
Fish are a good source of protein and generally low in fat.<br />
What fat there is, is the highly prized omega3 variety (see<br />
page 47). The amount of omega3 fatty acids in a few servings<br />
of fish is enough to treat health problems like PMS and<br />
eczema. The fish <strong>with</strong> the highest amount of omega3 fatty<br />
acids include mullet, trout and salmon. Some fish, including<br />
whitebait and sardines, have edible bones, which are an<br />
excellent source of calcium. All in all, fish is a fantastic addition<br />
to the diet. Eat it three to four times a week. Three<br />
servings of fish a week reduce by half the risk of sudden<br />
death by heart attack in those <strong>with</strong> cardiovascular disease.<br />
One problem is that heavy metals like mercury have been<br />
found in the flesh of bigger fish, especially shark (flake).<br />
CRAB, LOBSTER, OYSTERS, MUSSELS, PRAWNS, SCALLOPS<br />
People go bananas over the exotic, subtle flavours of shellfish.<br />
Unfortunately, they are a common allergy food.<br />
We now know that the cholesterol in shellfish is the 'good'<br />
type, meaning that you can eat them <strong>with</strong> abandon, if you<br />
can afford to do so. The only problem <strong>with</strong> shellfish is where<br />
they come from. As they naturally live and feed around estuaries,<br />
they are more likely to be contaminated <strong>with</strong> pollutants<br />
being washed offshore and heavy metals, including aluminium<br />
and mercury.
The Food We Eat:<br />
But Should We?<br />
Coffee<br />
Directly below my clinic is an Italian coffee shop. I often see<br />
patients furtively gulping a cappuccino minutes before their<br />
appointment time <strong>with</strong> me, thinking that coffee and naturopaths<br />
don't mix.<br />
Coffee can be compatible <strong>with</strong> good health. However,<br />
some people are definitely better off <strong>with</strong>out it. Coffee is a<br />
frequently used negotiating tool by me when designing diets.<br />
I'll let you have one cup of coffee a day if you sacrifice the<br />
camembert and chocolate. Mostly, it's a win-win situation.<br />
Coffee is the world's favourite drug and the second most<br />
important export after oil. It has a long history of use in Arabia<br />
and Ethiopia and was sipped in China back in 2000 BC.<br />
Coffee spread to Europe in the fifteenth century and was<br />
used as a medicine and to help keep monks awake during<br />
hours of meditation. Voltaire, the French poet and revolutionary,<br />
was said to drink 50 cups of coffee a day. The highest<br />
consumption I have come across was a merchant banker who<br />
drank 25 cups a day.
132 The Commonsense Guide to <strong>Eating</strong> We!/<br />
Caffeine<br />
There are over 200 chemical constituents in the roasted<br />
coffee bean. Some responsible for its heavenly aroma, others<br />
for flavour. Caffeine (a plant alkaloid known as methyl xanthine)<br />
is probably the most widely studied constituent of<br />
coffee, although there is evidence that many of the actions<br />
of coffee on the body come from chemicals other than caffeine.<br />
Caffeine is present in several other plants, including<br />
tea, mate, kola nut and guarana.<br />
One gram (1000 milligrams) of caffeine can have toxic<br />
effects; 10 grams of pure caffeine is lethal. The average cup<br />
of coffee delivers around 100 milligrams of caffeine and most<br />
people stay <strong>with</strong>in safe limits. However, I have seen sensitive<br />
people have side effects such as insomnia and high blood<br />
pressure from as little as one cup of coffee a day.<br />
Bodily effects<br />
Caffeine is a nervous system stimulant. A couple of<br />
cups can improve attention, concentration and coordination.<br />
More than this can lead to, or exacerbate,<br />
all sorts of problems ranging from insomnia, panic<br />
attacks, headaches, irritability and depression. Watch<br />
for caffeine in cola and other soA drinks. Children<br />
especially, can get hyped up <strong>with</strong> caffeine in their<br />
systems.<br />
Caffeine can increase your heart rate and blood pressure,<br />
although this doesn't appear to be a problem for<br />
long-term coffee drinkers. Some people experience<br />
erratic heartbeat or arrythmia. For people <strong>with</strong> heart<br />
disease, more than a couple of cups a day is not recommended<br />
as caffeine has proven to increase blood<br />
fats - a risk factor in heart disease.<br />
Coffee tastes bitter and like all true herbal bitters,
T&e Food We Eat: But SAozsB We? 133<br />
coffee increases production of gastric and other digestive<br />
juices. This is probably why a cup of coffee is<br />
commonly had after dinner, to aid digestion. As it<br />
powerfully stirs up gastric juices, coffee is to be<br />
avoided by anyone <strong>with</strong> a stomach ulcer, gastritis,<br />
reflux, or tender tummy. For these people particularly<br />
avoid drinking coffee on an empty stomach. Caffeine<br />
relaxes the oesophageal sphincter, increasing the likelihood<br />
of reflux.<br />
Caffeine is a smooth muscle relaxant. Smooth muscle<br />
lines the bowel and blood vessels. For this reason, a<br />
strong cup of coffee may help some headaches or<br />
migraines that are caused by constricted blood<br />
vessels (take care that the headache is not merely a<br />
symptom of caffeine <strong>with</strong>drawal). The other effect is<br />
to relax the bowel. For some people this means a<br />
strong coffee will cause diarrhoea, for others a cup of<br />
coffee is necessary for regular bowel movements. If<br />
coffee helps you to move your bowels, the cause of<br />
your constipation is most likely stress, as you hold<br />
tension in your bowel.<br />
You don't have to have sugar in your coffee to<br />
increase your blood sugar levels. Caffeine stimulates<br />
the release of adrenalin, the buzzy stress hormone.<br />
Adrenalin causes a sudden rush in blood sugar.<br />
Unfortunately, this increase in blood sugar levels<br />
quickly slides into a fall. Those <strong>with</strong> a tendency<br />
towards hypoglycaemia (see page 25) will do best by<br />
avoiding caffeine altogether.<br />
Caffeine is a diuretic, increasing the flow of urine. As<br />
a result, minerals including iron and calcium are<br />
passed out in the urine. Clients often look crestfallen<br />
when I counter their proud claim of fwe cups of water<br />
(in coffee) <strong>with</strong> the fact that they are excreting more
134 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong>'<br />
water than they are drinking. Cruel but fair. Drink a<br />
glass of water to every one cup of coffee.<br />
Pregnant women oAen tend to turn off coffee. Which<br />
is well and good as the unborn baby has a terrible<br />
time of metabolising caffeine. It takes the foetus up<br />
to 140 hours to process what it takes the adult one<br />
hour to do. It is wise to omit coffee when you are<br />
trying to fall pregnant as some studies show that caffeine<br />
reduces fertility (in women) by half. Caffeine is<br />
not only able to cross the placenta but also passes<br />
into breast milk. Cut down the coffee if you have a<br />
fractious breast-fed bubby.<br />
There is a proven link between caffeine and breast<br />
lumps (non-cancerous) and frbroids. It also adds to<br />
premenstrual breast tenderness.<br />
Athletes have been using caffeine to enhance performance<br />
for many years. Robert de Castella used to<br />
drink a cup of coffee before every marathon. Caffeine<br />
has been found to increase (for a short time) muscle<br />
stamina and strength. Due to its effect of increasing<br />
blood fats it makes available a source of fuel for<br />
muscles and saves precious stored glycogen in endurance<br />
events such as a marathon.<br />
The following are some conditions that may well respond<br />
positively to a caffeine-free lifestyle: panic attacks, high blood<br />
pressure, painful periods, fibrocystic breast and uterine<br />
disease, PMS, restless leg syndrome, heart disease, high<br />
cholesterol, diarrhoea, depression, insomnia, hyperactivity,<br />
stomach ulcers, gastritis and gastro-oesophageal reflux.<br />
Most people are able to handle one or two cups of coffee<br />
a day. However, if you have one of the conditions above or
The Food We Eat: Bllt S&ould We2 135<br />
are particularly sensitive to caffeine, then even this small<br />
amount will have negative results.<br />
Caffefne <strong>with</strong>drawal - cold turkey<br />
If you think caffeine may have a negative effect on your<br />
health, the best way to test your theory is to eliminate<br />
caffeine (including tea, cola and chocolate) for one week.<br />
The chemical caffeine does not accumulate in the body<br />
and has a half life (the time taken to reduce the level in<br />
the body to half its initial value) of around four hours.<br />
Peak concentration of caffeine occurs <strong>with</strong>in one hour of<br />
consumption. At around 18 hours aAer your last cup of<br />
coffee, the levels of caffeine are very low and this is the<br />
time to be wary of caffeine <strong>with</strong>drawal. Lock yourself<br />
away for the next 24 to 48 hours. You will probably<br />
experience throbbing headaches, irritab'iltty and extreme<br />
fatigue, which wiIl help you develop the convincing argument<br />
that in order to feel better, all you need Is a cup<br />
of coffee. Don't do it.<br />
Tea<br />
From the tea ceremony in Japan to the Australian tradition<br />
of a cup of tea <strong>with</strong> a lamington, tea has had symbolic and<br />
cultural significance for over 2000 years.<br />
Green tea has risen in popularity since the discovery of its<br />
cancer-protective qualities, mainly due to a tannin called E$igallocatechin<br />
gallate, which helps in liver detoxification and<br />
strengthening the immune system. Black tea also contains<br />
some of these antioxidants, although the fermenting process<br />
which turns green tea into black diminishes the quantity a<br />
little.
136 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Tea contains a certain amount of caffeine but because of<br />
the tannins less caffeine is absorbed into the body. Some<br />
sensitive individuals will notice a caffeine effect but generally<br />
tea gives you a gentle lift rather than a caffeine kick.<br />
Puffy eyes from a late night respond to a 10 minute,<br />
cool teabag compress. A solution made from weak<br />
black tea sprayed finely over mattresses and pillows<br />
deactivates omnipresent dust mites.<br />
Tea seems to slow down peristalsis, the snaky muscular<br />
movement of the bowel, increasing a tendency towards constipation.<br />
There is some evidence that tea may decrease bile<br />
secretion, thereby hindering fat digestion.<br />
Both tea and coffee reduce our absorption of iron and<br />
calcium from food. Theophylline, the alkaloid in tea, is a<br />
stronger diuretic than coffee, so make sure you drink a glass<br />
of water for every cup of tea.<br />
Alcohol<br />
One for the road<br />
Most of us like a drink or two. A glass of wine or beer marks<br />
the end of a busy day, the celebration of a happy event, part<br />
of a romantic dinner, or a fun night out <strong>with</strong> friends.<br />
Ages ago humans cottoned on to the fact that any fermenting<br />
vegetable or fruit will give us a fine old time. Fermented<br />
grapes turn into wine and brandy; potatoes and grains<br />
into vodka; and rye into rye whisky. Not surprisingly, the<br />
human animal has evolved mechanisms to cope <strong>with</strong> alcohol.<br />
Alcohol is the scientific name of a group of substances that
The Food We Eat: But Shozcrld' We? 237<br />
includes ethanol. Ethanol is the alcohol in alcoholic beverages.<br />
Ethanol is toxic in the smallest amount. Methanol, even<br />
more deadly, is the alcohol in methylated spirits.<br />
Alcohol is soluble in fat and water. This may not sound<br />
like something to write home about, but it is the key to why<br />
alcohol is so deadly. The membranes that line our cells are<br />
made up of a combination of fat (phospholipid) and protein.<br />
Alcohol, because of its fat solubility, is able to enter cells<br />
uninvited causing immediate damage.<br />
While most nutrients wait until they reach the small intestine<br />
before being absorbed, alcohol is impatient, 20 per cent<br />
being absorbed straight from the stomach. This is why we<br />
can feel the effect seconds after the first sip and the reason<br />
why we get drunk faster on an empty stomach. When alcohol<br />
crosses the stomach wall, some hydrochloric acid will seep<br />
across, disturbing the thick mucus lining that normally protects<br />
the stomach wall from damage. Over time, stomach<br />
inflammation (gastritis) and stomach ulcers may occur. These<br />
effects are made worse by drinking alcohol on an empty<br />
stomach - food acts as a buffer.<br />
VIP needs to be shown the door ASAP<br />
After absorption, alcohol is treated as a VIP not because it is<br />
worthy of respect but because it is one toxic individual and<br />
needs to be dealt <strong>with</strong> ASAP. Alcohol increases the risk of<br />
cancer of the oesophagus, stomach, bowel and pancreas. As<br />
well as increasing blood fats and cholesterol levels, it is also<br />
a risk factor in diabetes, impotence and heart disease.<br />
The first by-product of alcohol is acetaldehyde and it is<br />
this creature that is responsible for many of the more unpleasant<br />
sensations of alcohol: facial flushing, headache and<br />
nausea. Behind the scenes, acetaldehyde causes nerve and<br />
brain damage, as well as slowing down liver function. Acetaldehyde<br />
is also the chemical of addiction. We have certain
138 The Commonsense Guide to <strong>Eating</strong> We!'/<br />
receptor sites in the brain, willing and able to receive molecules<br />
of acetaldehyde. The more of these receptor sites, the<br />
more alcohol we desire. There have been some controversial<br />
studies that suggest that alcoholics are born <strong>with</strong> more receptor<br />
sites than non-alcoholics.<br />
Acetaldehyde is the chemical of addiction. Some people<br />
crave the feeling of euphoria it brings. Alcohol is a nervous<br />
system depressant. A few drinks will depress normal inhibitions<br />
and is the reason behind many embarrassing office party<br />
incidents. It also compounds many cases of domestic violence,<br />
child ause and road accident deaths.<br />
Various enzymes are responsible for the conversion of<br />
alcohol into acetaldehyde and indeed, the remaining metabolic<br />
conversions. These enzymes require the assistance of<br />
certain micronutrients including zinc, B1 and B3 in order to<br />
do their duty. If the body is low in any of these nutrients,<br />
alcohol will take longer to be broken down, allowing a longer<br />
time to wreak its damage.<br />
Acetaldehyde is finally broken down into acetyl groups<br />
that can be used for energy but is more often converted into<br />
fat. A gram of alcohol yields seven calories a gram, which is<br />
more than carbohydrate and protein and less than fat. Even<br />
at seven calories a gram, alcohol is not a preferred source of<br />
energy as it causes so much damage and uses up lots of micronutrients<br />
in the bargain.<br />
Cheers: the case for the defence<br />
In defence of the odd grog, there are plenty of healthy octogenarians<br />
who swear by a daily tipple. A glass of wine <strong>with</strong><br />
dinner helps us to unwind. A relaxed digestive system is more<br />
likely to do a good job of digesting dinner. If we are well<br />
nourished, particularly in the micronutrient department, our<br />
body can deal <strong>with</strong> alcohol - just not to excess. The liver
TAe Food We Eat: But Should We.p 139<br />
takes one hour to metabolise 10 grams of alcohol, the equivalent<br />
of a standard drink.<br />
Information arising from the 'French Paradox' research<br />
gives cause for celebration for red wine aficionados. Several<br />
years ago, scrawny, fat-deprived nutritionists became<br />
inflamed <strong>with</strong> indignation when they realised their French<br />
cousins were enjoying escargots literally swimming (do snails<br />
swim?) in olive oil, salads dripping in fragrant dressing and to<br />
top it all off were seen to guzzle litres of Beaujoulais - and<br />
that was just for lunch. After much intensive research into<br />
the wee small hours in quaint Parisian cafes, it was determined<br />
that the bioflavonoids, proanthocyanidins, found in red<br />
grapes are a powerful antioxidant. These bioflavonoids possibly<br />
prevent the onset of heart disease (see bioflavonoids,<br />
page 172).<br />
Chocolate<br />
The Aztecs prized their beloved but unpronounceable cacahuaquchtl<br />
tree, even calling it 'food of the gods'. The invading<br />
Spaniards sent some of the dried cocoa berries home. The<br />
original 'hot chocolate' was born, by brewing up a few beans<br />
together <strong>with</strong> vanilla and a dash of chilli.<br />
Throughout the 1700s chocolate was used medicinally as<br />
a heart tonic, probably due to cocoa's diuretic properties.<br />
(Diuretics are often prescribed for people <strong>with</strong> high blood<br />
pressure to reduce blood volume therefore reducing overall<br />
pressure in the blood vessels.) In addition, chocolate is a<br />
warming food. For people <strong>with</strong> poor circulation who hate<br />
wintertime, hot chocolate made <strong>with</strong> good quality cocoa, hot<br />
water and honey can be quite therapeutic.<br />
Chocolate holds a special place in the hearts, minds<br />
and stomachs of many of us. There is some evidence that
140 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
phenylethylamine (PEA), a chemical found naturally in cocoa<br />
beans, is the reason for chocolate's allure. PEA is an neurotransmitter<br />
that appears to act as an antidepressant and has<br />
been dubbed 'the chemical of love' - which explains the<br />
contradictory behaviour of eating chocolate bars when we feel<br />
fat and unhappy.<br />
Chocolate contains goodish amounts of magnesium, iron,<br />
copper and some B vitamins but don't think of it as a multivitamin<br />
substitute. The down side of chocolate is that it<br />
contains oxalic acid which can be a problem for people <strong>with</strong><br />
a tendency to kidney stones, as oxalic acid readily combines<br />
<strong>with</strong> calcium and most kidney stones are calcium oxalate.<br />
There is a small amount of caffeine in chocolate, and this<br />
should be taken into account if you have any problems <strong>with</strong><br />
caffeine (see page 131). Chocolate can also be an allergy food<br />
for some unfortunate people, particularly those who are<br />
plagued by migraines but also mouth ulcers, heartburn, constipation<br />
and facial swelling. Chocolates are made <strong>with</strong> added<br />
fat, milk and sugar, which makes it a high calorie food.
VITAMINS AND<br />
MINERALS
The basics of<br />
micronutrients<br />
Nowadays, it seems you can't walk past a supermarket or<br />
newsagent <strong>with</strong>out being bombarded <strong>with</strong> information about<br />
vitamins and minerals. Although most of us know that vitamins<br />
and minerals are important, exactly what they do in the<br />
body and why we may need extra is rarely explained.<br />
There are six types of nutrients necessary for good nutrition:<br />
carbohydrates, fat, protein, water and last but not least, vitamins<br />
and minerals. Vitamins and minerals, also known as micro<br />
(small) nutrients, occupy a tiny 5 per cent of our diet, yet they<br />
play a key role in maintaining health. If we are deficient in any<br />
of these micronutrients our well-being will surely suffer.<br />
Vitamins: water soluble and fat soluble<br />
Vitamins are found in plants and animals; they are necessary<br />
for growth and maintenance of health. With few exceptions,
144 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
the body must obtain micronutrients from food or dietary<br />
supplements. Vitamins B2, B9, B12 and K are capable of<br />
being made in the body by our own bowel bacteria, although<br />
often not in sufficient quantities for the body's needs.<br />
There are two categories of vitamins: (1) water soluble,<br />
including vitamin C, B-complex vitamins and the bioflavonoids;<br />
and (2) fat soluble, including vitamins A, D, E and K.<br />
The solubility of a vitamin relates to the way it is absorbed<br />
and transported throughout the body. Water-soluble vitamins<br />
must be consumed daily as they cannot be stored for long<br />
before they are excreted from the body. Fat-soluble vitamins<br />
are absorbed from the small intestine in the same way as fat<br />
in food, <strong>with</strong> the help of bile and fat-metabolising enzymes.<br />
Fat-soluble vitamins may be stored for some time in fat and<br />
liver cells. People who have problems digesting fat or are on<br />
extremely low-fat diets may be at risk of becoming deficient<br />
in these fat-soluble vitamins.<br />
About minerals<br />
Minerals are naturally occurring elements found in the earth's<br />
surface. Minerals coexist <strong>with</strong> vitamins in the body and their<br />
work is interrelated. There are two main groups of minerals:<br />
(1) those we require in larger amounts, including calcium,<br />
magnesium, sodium, potassium and phosphorus; and (2) those<br />
we require in smaller amounts, and these are called the 'trace' '<br />
minerals, including zinc, iron, copper, manganese, chromium,<br />
selenium and iodine.
The basics of micronutrients 145<br />
Are vitamins and minerals a waste of money?<br />
One common misconception is that if vitamins and minerals<br />
are excreted in the urine, this must mean they have not been<br />
used by the body at all and are, in effect, a waste of money.<br />
Vitamin BZ - riboflavin - is a prime offender here, causing<br />
the urine to glow fluorescent yellow. Micronutrients are not<br />
used up, in fact they are recycled, making them very good<br />
value for money. A vitamin or mineral can be used many,<br />
many times as a 'coenzyme', partnering <strong>with</strong> various enzymes<br />
<strong>with</strong>in the body. Without its micronutrient 'partner' the<br />
enzyme is rendered useless. A micronutrient can partner<br />
several enzymes, before being filtered by the kidneys and<br />
excreted into urine.<br />
To supplement or not to supplement?<br />
If I eat reasonably well, do I need to take a supplement? In<br />
an ideal world, where there is no illness, stress, pollution or<br />
processed foods, then the answer to this question would be<br />
'no'. However, for most of us a daily supplement is necessary<br />
to replace nutrients lost in cooking and processing, as well as<br />
those nutrients used up in our battle against stress, cigarettes,<br />
alcohol, pollution and other elements common to modern-day<br />
life. Nutritional supplements are one way to redress this<br />
imbalance.<br />
Where have all our minerals gone?<br />
The soil in which our food is grown is either deficient or<br />
has become deficient in minerals over the years, particularly<br />
potassium, calcium, sulphur, selenium, manganese,<br />
copper, zinc, boron, molybdenum and cobalt.
146 The Commonsense Gzlide to <strong>Eating</strong> <strong>Well</strong><br />
Some medications deplete or interact <strong>with</strong> vitamins in<br />
the body; for example, antibiotics deplete vitamins B1,<br />
B2, B6, B12, C, A, D, K, folic acid, calcium, iron, potassium,<br />
magnesium and zinc. Similarly, the oral contraceptive<br />
pill, cholesterol-lowering drugs and laxatives all<br />
contribute to a depletion of vitamins.<br />
Each cigarette uses up 50 milligrams of vitamin C.<br />
Twenty cigarettes a day uses up 1000 milligrams of<br />
vitamin C, an amount you are unlikely to obtain from<br />
your diet. Cigarettes contain hundreds of different chemicals,<br />
many toxic. The body deals <strong>with</strong> these chemicals<br />
in various ways <strong>with</strong> detoxifl'mg enzymes in the liver<br />
and antioxidants. Both need the help of vitamins and<br />
minerals in their detoxiwng roles.<br />
Heat destroys many vitamins, particularly the B group<br />
and C. Any cooking, particularly overcooked or reheated<br />
foods will have fewer vitamins.<br />
Who will benefit from nutritional<br />
supplementation?<br />
Two groups of people benefit from nutritional supplementation.<br />
The first group use a dietary supplement as 'nutritional<br />
insurance' to prevent illness. These folk are usually<br />
healthy but hectic. They need to ensure 100 per cent efficiency<br />
in their busy lifestyle. A multivitamin <strong>with</strong> an emphasis<br />
on the B group would be perfect for these people. Perhaps<br />
<strong>with</strong> extra garlic and vitamin C to help the immune system<br />
ward off colds and flus.<br />
The second group of people are those <strong>with</strong> a particular<br />
condition that will respond favourably to nutritional therapy.<br />
At these times it is best to consult your practitioner.
The basics of micronutlr'ents 147<br />
How long should you take a supplement?<br />
Like most things worthwhile, natural medicine takes its own<br />
good time. Vitamins, minerals and herbs are not 'quick fixes'.<br />
It takes time, commitment and patience to appreciate the<br />
health benefits natural supplements have to offer. One rule<br />
of thumb is to expect one month of treatment for every year<br />
of an ailment. For instance, if you have had eczema for 15<br />
years then expect the treatment to take as long as 15 months,<br />
although you will probably see results well before then. As<br />
far as 'nutritional insurance' goes, good news is no news!<br />
Nutritional supplementation can help all sorts of conditions.<br />
However, it is most unwise to <strong>with</strong>draw or reduce any<br />
medication for an illness <strong>with</strong>out first seeking advice from a<br />
competent practitioner. Another word of caution: it is easy to<br />
confuse signs and symptoms of one illness <strong>with</strong> another, so<br />
it is advisable to seek an informed diagnosis before commencing<br />
any treatment.<br />
What is the RDI and what does it mean for<br />
you?<br />
The initials RDI stand for the Recommended Dietary Intake,<br />
which is based on the American equivalent RDA (Recommended<br />
Daily Allowance) adapted by the Food and Drug<br />
Administration Board, judged to be sufficient to maintain<br />
health in the average person.<br />
As anyone who has studied statistics (bless them) knows,<br />
population curves peak at the 'average' or 'mean' point and<br />
then taper down either side, from very very below average,<br />
to very very above average. Each one of us is unique. Just as<br />
our nose, eyes and hair colour differ, so too does our internal<br />
biochemistry. Any one of us may have exceedingly high
148 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
biochemical demands for a particular nutrient, say zinc, while<br />
having normal needs for others. In this case, if your diet contained<br />
'normal' RDI quantities of zinc, your body wouldn't<br />
think it sufficient and you may show zinc deficiency signs -<br />
such as poor immune function, delayed skin healing and<br />
menstrual problems or cystic acne - even though your zinc<br />
intake is 'normal'. In addition, certain illnesses or habits like<br />
alcohol or cigarettes may cause a deficiency or a need for<br />
more than 'average' amount of micronutrients.<br />
Mr Average and Mrs Typical<br />
The RDI may be appropriate for Mr and Mrs Average, but<br />
supplements are more appropriate for Mr and Mrs Typical.<br />
A typical person who may benefit from nutritional supplementation<br />
includes anyone who suffers stress, encounters pollution,<br />
is elderly, pregnant or breastfeeding, is an athlete, has<br />
a less than perfect digestive tract, misses meals, eats fast food;<br />
all of which are indications that there is a higher than<br />
'average' need for micronutrients.<br />
When is the best time to take a supplement?<br />
The best time to take supplements is generally <strong>with</strong> a meal<br />
or at the end of a meal. When we eat, all our digestive organs<br />
are revved up, giving the best chance for all nutrients to be<br />
absorbed. The exception to this rule is vitamin C, which can<br />
be taken between meals as well.<br />
If possible, it is preferable to take your vitamins in divided<br />
doses; that is, little and often. This will assist in better absorption.<br />
In reality, many people find this inconvenient and will<br />
forget to take the lunchtime supplement. If this sounds like
The basics of micronzctl$ents 149<br />
you, then it is usually better to take the supplement at one<br />
regular time, say after breakfast. If you are under the care of<br />
a naturopath, he or she may have good reason why you need<br />
to take your herbs or supplements more frequently.<br />
Synergists and antagonists<br />
Most nutrients work best in combination <strong>with</strong> others. This is<br />
the way they are found in nature. For instance, the bioflavonoids<br />
enhance the action of vitamin C and by no coincidence,<br />
bioflavonoids exist together <strong>with</strong> vitamin C in fruit<br />
and vegetables.<br />
Vitamins and minerals are just like people, they have<br />
friends and foes. Micronutrients that assist <strong>with</strong> the absorption<br />
and utilisation of others are called 'synergists'. In the<br />
example above, Vitamin C and the bioflavonoids are synergists.<br />
Micronutrients or other substances that prevent or<br />
hinder absorption and utilisation are called 'antagonists', or<br />
nutrient thieves. Vitamin E and iron are antagonists and if<br />
possible should be taken at either end of the day. Don't worry<br />
if your multivitamin contains both nutrients, you will find it<br />
difficult to remove the E from the tablet! This rule only<br />
applies if you are taking separate tablets of iron and E.<br />
Another rule is when taking a single B vitamin, say B12,<br />
is that you take a B complex as well, as they tend to work as<br />
a team. B12 needs B1, B5, B6, B9 and biotin to be utilised.<br />
Which vitamins should I take?<br />
The Therapeutic Goods Act (TGA) is a mixed blessing for<br />
the health food industry. On the one hand, companies have<br />
had to clean up their act or be tapped on the shoulder by the
150 The Commonsense Gzlide to <strong>Eating</strong> <strong>Well</strong><br />
long finger of the law, There were instances when what was<br />
claimed on the label bore no resemblance to what was in the<br />
bottle. In addition, anyone was allowed to claim that their<br />
product cured anything, from cancer to ingrown toenails. The<br />
guidelines in the TGA make it very difficult to make any<br />
claims. The most a manufacturer can do is to claim temporary<br />
relief of minor symptoms. This causes a great deal of uncertainty<br />
as people mill around the vitamin shelves unsure about<br />
what to take. There is little reliable information around. I<br />
may be accused of beating my own drum but it will be cost<br />
effective and more useful to seek the advice of a good naturopath<br />
who specialises in supplements, to recommend which<br />
supplements you should take and in what quantities.<br />
As far as quality goes, it is best to stick to medium- to<br />
top-of-the-range products. Usually, if manufacturers are<br />
concerned <strong>with</strong> their reputation, they will include quality<br />
ingredients and good formulations. Rather than buying five<br />
or six different vitamins, often there is a formulation which<br />
will suit your needs. For example, women's multivitamins<br />
help <strong>with</strong> menstrual problems, in addition to being a good<br />
all-round multi.<br />
Be nutritionally responsible<br />
Many people find that supplements fill a nutrient gap and<br />
they start to feel a whole lot better. Unfortunately, some<br />
people abuse vitamins and minerals, substituting a pill for a<br />
good diet and lifestyle.<br />
Even when we take a nutritional supplement, we still need<br />
to take responsibility for our health. Good food, rest and<br />
regular hours cannot be provided in a capsule. Supplements<br />
are not a bandaid solution; vitamins and minerals work for us<br />
when we use them wisely.
The basis of micronutrients 151<br />
Here are a few commonsense rules to follow to help<br />
ensure a diet rich in nutrients:<br />
Reduce coffee, tea, cigarettes and alcohol<br />
Eat fresh food instead of canned, frozen or presewed<br />
where possible<br />
Choose wholemeal over refined (white) flour and rice<br />
products<br />
Eat plenty of aII vegetables and fruit<br />
Avoid food and drinks <strong>with</strong> chemicals, preservatives,<br />
artificial sweeteners and colourings<br />
Exercise regularly<br />
Manage your stress<br />
Drink plenty of water
Getting to Know You:<br />
Vitamins and Minerals<br />
Antioxidants<br />
Just what are antioxidants? And how can they improve your<br />
health now and into the future?<br />
Increased interest in the field of antioxidants has resulted<br />
in fascinating new information. In fact, a revolution has<br />
occurred in the way we view the onset of certain diseases and<br />
even ageing has come under scrutiny. Antioxidants appear to<br />
help prevent or delay these processes.<br />
Free radicals: a necessary evil<br />
To understand why antioxidants are so good, we must first<br />
become acquainted <strong>with</strong> their nemesis - free radicals. A free<br />
radical is defined as any molecule that has an unpaired electron<br />
in its outer orbit. Molecules prefer their electrons paired,<br />
so this situation is disturbing. The free radical molecule <strong>with</strong><br />
the unpaired electron is unbalanced and therefore highly<br />
reactive. In non-technical language, a troublemaker!<br />
Free radicals are formed in the body and have an important
Getting to Know You 153<br />
role to play in energy production, the immune system and<br />
detoxification. We have internal safety mechanisms to deal<br />
<strong>with</strong> them. An excess of free radicals in the system is a<br />
problem, as they tend to form a destructive chain reaction.<br />
The number of free radicals grows as we age. Pollution, pesticides,<br />
radiation, excessive exercise, joint and tissue injuries,<br />
surgery and emotional stress are all capable of increasing free<br />
radicals in the body.<br />
Although they are tiny, free radicals can wreak havoc to<br />
our cells. Free radicals cause harm in two distinct ways. First,<br />
they cause damage to the cell membrane. This means that<br />
nutrients and oxygen cannot enter the cell from the bloodstream<br />
and, conversely, waste products are unable to leave<br />
the cell. This effectively means cell death. Second, free radicals<br />
may also enter the cell and disturb the RNA and DNA,<br />
our cell's genetic material. Mutations will occur when the cell<br />
next divides if free radicals have changed the genetic code.<br />
Free radical damage has been found to be the cause, or promoter<br />
of, diseases such as cancer; heart disease; asthma; autoimmune<br />
conditions like multiple sclerosis and rheumatoid<br />
arthritis; the effects of ageing such as memory loss and<br />
wrinkles; diabetes; and heart disease.<br />
Antioxidants: fighting the good fight<br />
The connection between free radicals and antioxidants is that<br />
antioxidants have the ability to stop free radicals in their tracks.<br />
In fact, antioxidants are often termed 'free radical scavengers'<br />
or 'free radical sinks'. No wonder antioxidants are popular.<br />
They reportedly help delay the rate of ageing and form protection<br />
against various chronic illnesses, as well as ward off the<br />
harmful effects of stress. The antioxidants are either nutrients<br />
or enzymes that require nutrients. Many of these nutrients are<br />
vitamins and minerals we are already familiar <strong>with</strong>, including<br />
vitamins C, E, beta-carotene and selenium.
154 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Just as the body is capable of making free radicals, so is it<br />
capable of creating antioxidants. ,There are several enzymes,<br />
including catalase and superoxide dismutase, which are antioxidant.<br />
These enzymes require nutrients like copper, selenium,<br />
manganese and zinc in order to function. In addition<br />
to the homemade arsenal, the body imports antioxidants from<br />
food (and supplements) that may be positioned into cell<br />
walls, such as vitamin E, or wander through the body doing<br />
good antioxidant deeds along the way, such as vitamin C and<br />
the bioflavonoids. As research continues into antioxidants<br />
more nutrients are showing their colours, including the catechins<br />
from green tea, anthocyanidins from red wine, lycopene<br />
from tomatoes and substances from bilberry, ginkgo<br />
biloba, St Mary's thistle and rosemary.<br />
Conditions that might benefit from extra antioxidants<br />
Everyone is at risk of free radical damage. A daily vitamin<br />
tablet that focuses on the antioxidant nutrients is highly<br />
recommended. If you have a family history of heart disease<br />
or cancer, take a precautionary antioxidant supplement<br />
regularly.<br />
Food sources of antioxidants<br />
Green, red and orange fruits and vegetables; green tea; red<br />
wine; garlic; and various herbs such as ginko, St Mary's thistle<br />
and bilberry.<br />
The vitamins<br />
Vitamin A<br />
Vitamin A is very important for the eyes. The specialised eye<br />
cells of the retina, rods and cones need vitamin A to function.<br />
Without sufficient vitamin A, the condition known as night
Getting to Know You 155<br />
blindness is likely to occur. The scientific name for vitamin<br />
A is retinol, and our body can store quite a lot of the stuff,<br />
particularly in the liver.<br />
Vitamin A is available only from animal foods, especially<br />
cheese, liver and eggs. This is because animals, including the<br />
human variety, are able to convert beta-carotene, a plant<br />
pigment, into vitamin A. In fact, it is possible to obtain all our<br />
vitamin A requirements from beta-carotene. That is assuming<br />
your digestive system is in spiffing order, as well as having sufficient<br />
quantities of iron and thyroid hormone, which are both<br />
necessary for the conversion of beta-carotene to vitamin A.<br />
In addition to its role in eye health, vitamin A is essential<br />
for the maintenance of epithelia1 cells. Epithelial cells line<br />
the outside and the inside of the body. The skin is a type of<br />
epithelial cell, is too is the lining of the nose, sinuses, throat,<br />
bowel, lungs and vagina. When there is anything that affects<br />
the epithelial cells like an ulcer, irritation from an infection,<br />
or a nasty cough, vitamin A is needed to soothe and heal.<br />
Insufficient vitamin A leads to hardening of the skin, known<br />
as keratinisation, as well as unsightly small bumps (fondly<br />
known as toad skin), especially on the backs of the arms.<br />
Conditions that might benefit fm extra vitamin A<br />
Night blindness, conjunctivitis, sinus, dry skin, dandruff,<br />
asthma, colds, coughs, acne, wrinkles and psoriasis.<br />
Food sources of vitamin A<br />
Cod liver oil, liver (lamb, calf, chicken), butter, fish, cream,<br />
cheese, eggs and chicken.<br />
B-complex vitamins<br />
A family that plays together stays together<br />
There are eight vitamins that are collectively known as the<br />
B complex. The name is not a reference to their personalities,
156 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
but refers to the fact that they work harmoniously together,<br />
as well as being found in similar foods, particularly whole<br />
grains (<strong>with</strong> the exception of B12). The other thing in<br />
common is that they are vital for the release of energy from<br />
the food we eat, and necessary for nerve and muscle function.<br />
The water-soluble nature of the B complex means that<br />
they are excreted, not stored. In essence this means a daily<br />
requirement of all of these vitamins. There is an intricate<br />
balance to the Bs. If you take one to excess, this will lead to<br />
relative deficiencies of the others. Generally, if you need to<br />
take a single B, take a B complex along <strong>with</strong> it. The members<br />
of this happy family are:<br />
B1 Thiamin<br />
B2 Riboflavin<br />
B3 Niacin<br />
B5 Pantothenic acid<br />
B6 Pyridoxine<br />
B9 Folic acid<br />
B 12 Cobdarnin<br />
Biotin<br />
Note: There is no B4, 7, 8, 10 or 11. Substances sometimes<br />
referred to as B vitamins but are not include PABA, B15,<br />
B17 (laetrile), inositol and choline.<br />
Vltamln B1 - thtamln<br />
Vitamin B1, was scientifically recognised in 1926, nearly half<br />
a century before a serious disease called beri-beri was affecting<br />
60 per cent of the Japanese navy. Something lacking in<br />
the Japanese sailors' diet, which consisted almost entirely of<br />
white rice, seemed to be the key. That something turned out<br />
to be thiamin. Thiamin, as many other vitamins, is found in<br />
the husks of grain, which are disposed of in the processing<br />
of white rice and flour. As soon as some ricebran was added
Getting to Know You 157<br />
to their diet, the symptoms of beri-beri, which include paralysis<br />
and nerve dysfunction, disappeared.<br />
B1 is an integral part of the B team, whose job it is to<br />
release energy from the food we eat, including the all-important<br />
glucose, as well as fat and protein. Apart from its teamwork,<br />
B1 is very good for nervy problems. It helps to relieve<br />
anxiety, depression and trembling, particularly the feeling of<br />
'shaking inside'. A rather unusual sign that one might need<br />
extra B1 is a tenderness in the calf muscle, particularly when<br />
pressed.<br />
Alcohol tends to deplete our B1 stores and it is very<br />
common for heavy alcohol drinkers to suffer B1 deficiency,<br />
in extreme cases causing Wernicke Korsakoff syndrome,<br />
which sounds rather more romantic than it is. Symptoms<br />
include mental confusion, paralysis of the eye muscles and<br />
unsteady gait. Tea and coffee are also offenders by reducing<br />
thiamin activity.<br />
Conditions that might benefit from extra B1<br />
Heavy drinking; anxiety attacks; sore calves (particularly<br />
when prodded); tingling or shaking sensations.<br />
Food sources of BI<br />
Brewer's and torula yeast, wheatgerm, sunflower seeds, ricebran,<br />
pinenuts, legumes, whole grains.<br />
Vitamin B2 - riboflavin<br />
Vitamin B2 is the reason why your wee turns bright yellow<br />
seemingly minutes after you take a vitamin pill. The flavin<br />
in riboflavin comes from the Latin word for yellow - flavus.<br />
B2 is another important vitamin in the creation of energy<br />
from the major nutrients glucose, fat and protein. It is also<br />
essential in the maintenance and growth of the epithelial
158 The Commonsense Gtlide to <strong>Eating</strong> <strong>Well</strong><br />
cells, those that cover the body (skin) and line the hollow<br />
structures of the body like the bowel and lungs.<br />
Some of the signs that B2 is low include redness and soreness<br />
at the corner of the mouth, or a red and swollen tongue.<br />
Other signs affecting the skin include eczema, particularly of<br />
the eyelids and along the line from the edges of the nose to<br />
the mouth. An itchiness of the conjunctiva of the eyes may<br />
also be telling.<br />
Conditions that might benefit from extra BZ<br />
Eye irritations, dermatitis, ulcers of the digestive tract, including<br />
mouth ulcers and stomach ulcers. As the oral contraceptive<br />
pill interferes <strong>with</strong> B2 absorption, it would be a good<br />
policy to take a B complex if you are on the pill.<br />
Food sources of BZ<br />
Milk, yoghurt, ricotta, brewer's and torula yeast, chicken,<br />
almonds, wheatgerm, mushrooms and millet.<br />
Vitamin B3 - niacin<br />
Pellagra is the disease indicating the diet is severely lacking<br />
B3. Symptoms of pellagra are well known by medical students<br />
as there is a cute way of remembering them called the<br />
four Ds; that is, dermatitis, diarrhoea, dementia and death.<br />
While most people do not progress to the extremes of the<br />
latter two Ds, B3 can be of benefit to several health problems.<br />
Another piece of evidence that our body's biochemistry is<br />
remarkable is that the amino acid tryptophan can be converted<br />
into B3, <strong>with</strong> the help of B2 and B6. It takes 60 milligrams<br />
of tryptophan to make l milligram of niacin, so it is<br />
not an economical way of procuring B3.<br />
Vitamin B3 is a member of the distinguished team of vitamins<br />
that allow us to obtain energy from glucose, fat and
Getting to Kptow You 159<br />
protein. B3 comes in two forms - nicotinic acid and nicotinamide;<br />
both are used by the body. Nicotinic acid has an effect<br />
on the circulation by widening the blood vessels and increasing<br />
blood flow to the fingers and toes. If you take a reasonably<br />
large dose of nicotinic acid, you will most likely<br />
experience a sudden flush of heat and look like a tomato for<br />
a few minutes. In small amounts, say under 30 milligrams,<br />
this dramatic reaction does not occur and when it does, it is<br />
only transitory. Nicotinic acid has proven to be very useful<br />
in the treatment of heart disease. It is capable of lowering<br />
blood fats (triglycerides), as well as cholesterol. The blood<br />
vessel widening (vasodilating) properties means that it<br />
improves the circulation of blood through the body, helping<br />
to lower blood pressure. It would be wise to seek a competent<br />
practitioner who will help determine the correct dosage when<br />
treating heart disease. Other circulatory difficulties that also<br />
benefit from nicotinic acid include chilblains, cold feet and<br />
hands, Raynaud's syndrome, tinnitus (if the tinnitus is due to<br />
poor circulation) and the type of migraine which has constricted<br />
blood vessels in the head.<br />
People suffering from dermatitis, an itchy red skin condition,<br />
will do well to supplement <strong>with</strong> B3. Nicotinic acid, along<br />
<strong>with</strong> the mineral chromium, is an important component of<br />
Glucose Tolerance Factor (GTF). GTF encourages insulin to<br />
pass glucose from the bloodstream into cells. A controversial<br />
use of B3 has been in the treatment of schizophrenia. There<br />
has been some success in treating the debilitating mental disturbances,<br />
including paranoia, of this disease.<br />
Conditions that might benefit from extra B3<br />
Dermatitis, high blood pressure, high cholesterol, chilblains,<br />
tinnitus, poor circulation, Raynaud's syndrome, migraine,<br />
arthritis, diarrhoea, schizophrenia, sugar cravings, diabetes<br />
and hypoglycaemia.
160 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Food sources of B3<br />
Torula and brewer's yeast, lamb, liver, tuna, turkey, chicken,<br />
rice bran, wheat bran, trout, salmon, sesame seeds and sunflower<br />
seeds.<br />
V%tamln B5 - pantothenlc add<br />
Vitamin B5 has the distinction of being part of the structure<br />
of the opening ambit of the Krebs cycle, a creature called<br />
coenzyme A or CoA to its friends. This may not sound like<br />
a big deal, but not having CoA is like losing the keys to your<br />
car when you are stuck in the middle of nowheresville <strong>with</strong><br />
no water, food or mobile phone. That one little silver key<br />
(<strong>with</strong> the plastic bit on the end) could save your life. CoA<br />
begins the Krebs cycle, the most important energy-producing<br />
cycle we have.<br />
Without sufficient B5 we will start to feel very fatigued<br />
and depressed and all sorts of other things begin to go wrong.<br />
For instance, CoA is also needed to make fatty acids in the<br />
body. More than just fat, fatty acids are the precursors to all<br />
sorts of compounds including the sex hormones, bile and the<br />
stress hormone cortisol. Being deficient in B5 means not<br />
being able to cope <strong>with</strong> stress. Many people find that by<br />
supplementing <strong>with</strong> B5, their feelings of stress diminish and<br />
they feel increased energy.<br />
The beauty boffins caught on to B5 long ago when it was .<br />
revealed that it had an anti-greying and even an anti-ageing<br />
role. It is often included in shampoos and other cosmetics.<br />
Conditions that might benefit from extra B5<br />
Stress, tiredness or depression. B5 is also recommended for<br />
people who are reducing their dosage of cortisone. Cortisone<br />
replaces the body's output of its own stress hormone, cortisol.<br />
By increasing B5 levels, more cortisol can be made.
Food sources of B5<br />
Elderberries, royal jelly, brewer's and torula yeast, liver, egg<br />
yolk and peanuts. Pantothenic acid is derived from the<br />
ancient Greek word pantos, meaning everywhere, which<br />
reflects B5's wide distribution in all foods, and all parts of<br />
the body.<br />
Vitamin B6 - pyridoxine<br />
Like most of her siblings, this little B vitamin is needed for<br />
many enzyme reactions. One group of reactions that B6 is<br />
particularly called for is in the amino acid department. When<br />
certain amino acids need to be transformed into other amino<br />
acids, B6-containing enzymes are called for. Also, when<br />
certain amino acids are authorised to become nerve messengers<br />
(neurotransmitters) such as tryptophan to serotonin, tyrosine<br />
to dopamine, B6 is again on duty.<br />
Vitamin B6 aids in keeping body fluids balanced. When<br />
there is water retention (oedema), B6 can help. Premenstrual<br />
women who have sore, swollen breasts and for one week<br />
every month feel like a beached dugong <strong>with</strong> a bad attitude<br />
will find B6 a godsend. Take 250 milligrams of B6, in combination<br />
<strong>with</strong> a B complex, twice daily about 10 days prior to<br />
the first day of the period.<br />
Another enzyme B6 helps along is delta-6-desaturase, known<br />
to the 'in crowd' as D6D. This little fella is in part responsible<br />
for the conversion of a group of substances called the prostaglandins.<br />
The reason why omega-6 and omega-3 fatty acids are<br />
so popular in treatments is that they are able to convert to prostaglandins<br />
<strong>with</strong> the help of D6D. So, if D6D needs vitamin B6<br />
to work, then B6 it should be given, in bucket loads!<br />
Conditions that might benefit from extra B6<br />
Fluid retention, PMS, carpal tunnel syndrome (especially in<br />
pregnancy), pins and needles, nervous tension and irritability.
162 The Commonsense Gzcide to <strong>Eating</strong> <strong>Well</strong><br />
Food sources of B6<br />
Torula and brewer's yeast, sunflower seeds, linseeds, walnuts,<br />
whole wheat, tuna, soybeans and beef.<br />
B9 - folk acid<br />
Vitamin B9 is more commonly known as folic acid, which is<br />
the same as folate, its official name. The word folate originates<br />
from the Latin word folkm or leaf, because researchers<br />
first isolated folic acid from spinach and other leafy greens.<br />
Folic acid is well known for its role in preventing babies<br />
being born <strong>with</strong> spina bifida and other neural tube disorders.<br />
Folic acid is necessary for the synthesis of nucleic acids, the<br />
genetic material of cells. If the genetic material is not 100<br />
per cent then all sorts of problems ensue when cells replicate.<br />
In fact, any cell division and creation of protein (the structural<br />
bits of the body) is doomed if there is insufficient folate. This<br />
is particularly so for rapidly dividing cells as found in the<br />
unborn baby, the cells of the gastrointestinal tract and the<br />
skin.<br />
Cancer cells also tend to replicate quickly. Many of the<br />
chemotherapy drugs (used in cancer treatment) are aimed at<br />
blocking B9, to slow the growth of cancer cells. Common<br />
side-effects of chemotherapy include hair loss and digestive<br />
problems, due to the effect on hair follicles and gastrointestinal<br />
cells, which also replicate quickly.<br />
Along <strong>with</strong> B12, folic acid is required for the production of<br />
haemoglobin, the oxygen-carrying bit of red blood cells.<br />
Conditions that might benefit from extra folic acid<br />
Pregnancy and pre-conception, breastfeeding, diarrhoea,<br />
ulcers, cervical cell dysplasia, poor healing and gout. Do not<br />
take large doses of folic acid if you are undergoing<br />
chemotherapy.
Getting to Know You 163<br />
Food sources of folk acid<br />
Brewer's yeast, black eye peas, brown rice, soy, whole wheat,<br />
lentils, kidney beans, broccoli, brussels sprouts, spinach,<br />
cabbage, green beans, walnuts and beef.<br />
Vitamin B12 - cobalarnin<br />
Vitamin B12 is physically the biggest vitamin, that is because<br />
it is the only vitamin to contain a mineral in its structure.<br />
The mineral is cobalt, and that is how B12 arrived at its official<br />
name of cobalamin.<br />
Pernicious anaemia is due to B12 deficiency. B12 is needed<br />
in the creation of haemoglobin, the oxygen carrier of red<br />
blood cells. When there is not enough B12, the red blood<br />
cells become enlarged. A deficiency of B12 will leave you<br />
feeling tired and run down. This is in part due to the lack of<br />
oxygen, as well as the fact that B12 is needed for DNA synthesis.<br />
DNA is the genetic material needed for the normal<br />
growth of cells.<br />
Vitamin B12 is one tricky customer when it comes to<br />
absorption. No matter how much B12 we swallow, in pills or<br />
in our food, it will not be absorbed unless there is something<br />
called Intrinsic Factor (IF) present in the stomach. Certain<br />
glands in the stomach lining (parietal cells) are responsible<br />
for making IF.<br />
Vitamin B12 can only be made by animals, including tiny<br />
animals such as bacteria and perhaps algae. Mushrooms and<br />
other vegetables do not contain B12. If any B12 is present it<br />
can only come from bacterial contamination from an animal<br />
source such as manure. An interesting study on a group of<br />
Indian vegans showed that although their diet was very strict,<br />
that is, included no animal products at all, they obtained some<br />
B12 from vegetables that had not been thoroughly washed of<br />
dirt. The dirt contained bacteria that was a source of B12.
164 The Commonsense Gtside to <strong>Eating</strong> <strong>Well</strong><br />
Conditions that might benefit from extra BIZ<br />
Pernicious anaemia (BIZ, folic acid and iron should be given<br />
together in the treatment of anaemia); exhaustion; anything<br />
that effects the digestive system, such as surgery to digestive<br />
system or digestive disorders - for example, ulcer, digestive<br />
tract parasites. Vegans - people who eat no animal products -<br />
are at particular risk of B12 deficiency.<br />
Food sources of BIZ<br />
Liver, shellfish, fish, lamb, beef, eggs and cheese.<br />
Beta-carotene<br />
Bugs Bunny was on to a good thing. Beta-carotene, a yellowyorange<br />
pigment, named because of its carroty origins, is also<br />
known as provitamin A. Even green vegetables contain betacarotene,<br />
but darker pigments, including the bioflavonoids,<br />
can overshadow the orange. There are several carotenes in<br />
addition to the beta variety, although it is predominantly<br />
beta-carotene that is able to be converted to vitamin A. This<br />
happens in the intestines of animals, so you won't find<br />
vitamin A in plants.<br />
Vitamin A can be stored in the body. For this reason there<br />
is a chance of overdoing this very fine vitamin. Unlike A,<br />
beta-carotene cannot be stored for any length of time. Taking<br />
large doses of beta-carotene will not cause any health problems.<br />
The only symptom of excessive use is to turn the skin<br />
a little yellow (carotenodermia) and this will fade over time.<br />
Other carotenes include the likes of lycopene found in<br />
tomatoes, which has proven to be of use in preventing prostate<br />
cancer, and lutein and capsanthin found in red capsicum<br />
and paprika. Beta-carotene, in its own right, has been shown<br />
to be a potent antioxidant.
Getting to Know You 165<br />
Conditions that might benefit from extra beta-carotene<br />
Cancer, prostate cancer and asthma; any condition which<br />
could be benefited by vitamin A.<br />
Food sources of beta-carotene<br />
Red chillies, carrots, fresh and dried apricots, sweet potatoes,<br />
parsley, spinach, pumpkin, mangoes, rockmelon and broccoli.<br />
Biotin<br />
Biotin is often included in the B-complex group. It is a<br />
sulphur-containing vitamin that can be made in sufficient<br />
quantities by the bacteria in our bowel, the microflora. Biotin<br />
is involved in the synthesis of a few amino acids, particularly<br />
those required for skin, hair and nails, which is why biotin is<br />
recognised as a beauty vitamin.<br />
Conditions that might benefit from extra biotin<br />
Baldness, skin problems (including cradle cap in babies) and<br />
dermatitis.<br />
Food sources of biotin<br />
Brewer's yeast, liver, soy, brown rice, egg yolk, peanuts,<br />
walnuts, oats, sardines and almonds.<br />
Vitamin C - ascorbic acid<br />
Have you ever wondered what you have in common <strong>with</strong> a<br />
guineapig - besides feeling like one of life's little experiments?<br />
We are unable to make our own vitamin C, a skill<br />
that dogs, cats and even chipmunks have. Vitamin C, chemically<br />
known as ascorbic acid, can be made from a glucose<br />
molecule, given the correct enzymes. It seems when enzymes<br />
were distributed, guineapigs and humans, as well as other<br />
primates, bats, insects and fish, missed out. As vitamin C is<br />
a vitamin of importance, we have to depend on dietary
166 The Commonsense Gaide to <strong>Eating</strong> We![<br />
sources of vitamin C to fulfil our requirements. Unfortunately,<br />
this is often inadequate for our needs.<br />
Vitamin C is one of the most researched vitamins - and<br />
for good reason, as it has so many roles fundamental to our<br />
well-being. Vitamin C is one of the things you would choose<br />
to take <strong>with</strong> you on a desert island along <strong>with</strong> a good book<br />
and a movie star/model/dog of your dreams.<br />
Scurvy is the famous vitamin C deficiency disease and the<br />
most pronounced symptom of scurvy is, literally, falling apart<br />
at the seams. This is because vitamin C is needed for collagen,<br />
the material integral to muscle, blood vessels and bone.<br />
Without sufficient vitamin C, blood vessels become very<br />
fragile, leaking blood into the surrounding tissues causing<br />
massive bruising. You don't have to get to the total breakdown<br />
level of scurvy to be a victim to vitamin C deficiency.<br />
Those who bruise easily, find that wounds take a long time<br />
to heal or need to recuperate after surgery will all benefit<br />
from extra vitamin C.<br />
Vitamin C is one of the most important antioxidants in<br />
the body. It prevents free radical damage in the watery<br />
components of the body, <strong>with</strong>in and outside cells. The fatsoluble<br />
antioxidant nutrients, such as vitamin E, are responsible<br />
for protection in the non-aqueous places. Vitamin C<br />
protects the body against cigarette smoke and pollution.<br />
Smokers need an extra 50 milligrams of vitamin C for each<br />
cigarette. Vitamin C is also important for the detoxification<br />
mechanisms in the liver, so it would be helpful to take extra<br />
C if you have been exposed to any toxins, including pesticides<br />
or alcohol.<br />
Vitamin C is quite a strong antihistamine and anti-inflammatory.<br />
I can remember having a very nasty hayfever attack on<br />
a bushwalk around Jagungal (near Mount Kosciuszko) - a few<br />
grams of vitamin C completely restored my nose to sanity.<br />
Iron is better absorbed when there is vitamin C present.
Getting to Know You 167<br />
Another feature role vitamin C plays is that of stimulating<br />
and supporting the immune system. Vitamin C has been<br />
shown to increase white blood cell activity and increase resistance<br />
to bacterial, fungal and viral agents. The only sign of<br />
overdoing Vitamin C is diarrhoea.<br />
Conditions that might benefit from extra vitamin C<br />
Recovering from surgery and wounds, easy bruising, lots of<br />
infectious diseases (including colds and flus), stress, exposure<br />
to toxins, hayfever, asthma and allergies, cancer, high cholesterol,<br />
smoking.<br />
Food sources of vitamin C<br />
Acerola cherries, chilli, guavas, parsley, capsicum, broccoli,<br />
brussels sprouts, kiwifruit, strawberries, spinach, oranges,<br />
lemons, grapefruit, mangoes and tomatoes. The Australian<br />
Kakadu plum is the world's richest source of vitamin C.<br />
Chollne<br />
Choline is another vitamin that we can produce in the bowel,<br />
although only about 15 per cent of our requirements are made<br />
in this way and we need to obtain the rest from the diet or<br />
supplements.<br />
Choline is needed to form one of the major neurotransmitters<br />
(nerve messenger), acetylcholine. We would fall down<br />
in a heap if there was no acetylcholine.<br />
Choline is closely associated <strong>with</strong> another nutrient, inositol,<br />
in the formation of lecithin. Lecithin is a structural part of<br />
every cell membrane. It is also a component of the fat-transport<br />
vehicles in the bloodstream, the lipoproteins.<br />
Lecithin, because it is both water soluble and fat soluble,<br />
makes an excellent medium to help in the digestion and<br />
excretion of fats. In fact, this technique is what bile relies<br />
upon when emulsifying fats in the gastrointestinal tract. The
168 TAe Commonsense Guide to <strong>Eating</strong> WeZZ<br />
liver makes bile, and lecithin (or choline) is often given if<br />
there is a diminishment in bile activity.<br />
Conditions that might benefit from extra choline<br />
Gallstones, liver problems, problems digesting fat, high cholesterol<br />
and multiple sclerosis.<br />
Food sources of choline<br />
Lecithin, eggs, soybeans, liver, peanuts, sesame seeds, brazil<br />
nuts, legumes and whole grains.<br />
Vitamin D - cholecalcirferol<br />
The study of vitamins is comparatively new and the classification<br />
of vitamins has been slapdash at best. Vitamin D is<br />
actually a hormone masquerading as a vitamin. By the time<br />
it was found out that vitamin D has more in common <strong>with</strong><br />
hormones than vitamins, the damage was done. Too expensive<br />
to change the stationery.<br />
The main function of vitamin D is to help calcium be<br />
incorporated into bone, giving bone the rock-hardness it<br />
needs. Given enough sunshine, we can make vitamin D very<br />
easily. Sunlight acts on cholesterol on the skin's surface and<br />
is transformed into cholecalciferol, aka vitamin D. Vitamin D<br />
has been dubbed the 'sunshine vitamin' for this reason. It<br />
takes only a few minutes every few days for enough vitamin<br />
D to be formed. In Australia, <strong>with</strong> its obscenely sunny<br />
climate, vitamin D deficiency is rare. The classic deficiency<br />
disease is rickets, epitomised by poor British kids sent down<br />
the mines not seeing sunshine for days and weeks at a time<br />
and ending up somewhat short in stature <strong>with</strong> bandy legs.<br />
Other people at risk are those who live in year-Iong dull climates,<br />
people who wear lots of clothing (some traditional<br />
women in the Middle East) and rarely go outside (some<br />
elderly people). Sunscreen inhibits vitamin D synthesis.
Getting to Know You 169<br />
Make sure you leave a bit of skin sunscreen free.<br />
Vitamin D can also be obtained in the diet. Basically, if<br />
someone else has made vitamin D, we can vicariously<br />
consume it. Vitamin D is found in fish, eggs and milk.<br />
Conditions that might benefit from extra vitamin D<br />
Osteoporosis, osteomalacia, Paget's disease, pregnancy, lactation<br />
and rickets.<br />
Food sources of vitamin D<br />
Cod liver oil, canned sardines, salmon, tuna, butter, liver,<br />
eggs and cheese.<br />
Vitamin E - tocopherol<br />
Vitamin E has been added to beauty creams since the 1950s,<br />
and still is. It is an important antioxidant, and can be found<br />
squeezed into cell membranes to prevent them from being<br />
damaged through oxidation.<br />
Vitamin E used to be referred to as the 'fertility' vitamin<br />
and indeed it is essential for animal reproduction and fertility.<br />
In addition, vitamin E appears to play a role as hormonal<br />
modulator, helping in all sorts of conditions where errant hormones<br />
are involved. Menopausal problems such as hot<br />
flushes, endometriosis and PMS, in particular, can be helped<br />
by vitamin E supplementation. During menopause, an<br />
uncomfortable symptom can be a dry vagina: squeeze the<br />
contents of a 500 iu vitamin E capsule into the vagina each<br />
night.<br />
Vitamin E improves oxygenation of tissues including<br />
muscles. For this reason it is part of many athlete's nutritional<br />
programs as it has shown to enhance athletic performance.<br />
Many people simply feel more energetic when taking vitamin<br />
E. It is also very good for circulatory problems, improving<br />
blood flow all over the body. Especially if the blood is a little
170 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
sluggish, vitamin E has been proven to decrease platelet<br />
aggregation, a cause of clots and a risk factor for heart disease.<br />
Many people feel the benefits of improved circulation, from<br />
cold hands and feet, to chilblains and even gangrene.<br />
Vitamin E applied topically will help the skin to heal, particularly<br />
when scars are present. You can buy creams <strong>with</strong><br />
vitamin E added, or pierce a vitamin E capsule and apply the<br />
oil directly. First make sure the wound has healed and is dry<br />
before adding vitamin E. Aloe Vera, calendula and tea-tree<br />
oil may be helpful in this first stage when the wound is not<br />
dry-<br />
Conditions that might benefit from extra vitamin E<br />
Diabetes (sufferers often have poor circulation), wrinkles,<br />
PMS, menopause, endometriosis, scars, dry skin, cataracts,<br />
low energy, cancer and heart disease.<br />
Food sowces of vitamin E<br />
Wheatgerm oil, sunflower seeds, cold-pressed safflower oil,<br />
almonds, sesame seeds, sesame oil, olive oil and raw peanuts.<br />
Inositol<br />
Inositol can be produced in the liver as well as being available<br />
in food. Inositol acts together <strong>with</strong> choline as part of the<br />
structure of cell membranes. Interestingly, inositol is also<br />
important in stimulating peristalsis, the muscular wave-like<br />
movement that occurs down the length of the bowel.<br />
Conditions that might benefit from extra inositol<br />
Constipation, skin disorders including eczema, high cholesterol,<br />
fatty liver and multiple sclerosis.<br />
Food sources of inositol<br />
Lecithin, whole grains, legumes, brewer's yeast and molasses.
Gening to Know Yozl 171<br />
Vitamin K - phylloquinone<br />
Had vitamin K been born a girl, her name would have been<br />
Gertrude Henrietta or something requiring a deed poll. As it<br />
is, vitamin Ks proper name is phylloquinone. The 'K' bit originated<br />
from the Nobel prize-winning Danish scientist, Henrik<br />
Dam, who started the whole thing by calling it koagulationvitamin.<br />
Let's stick to simple vitamin K.<br />
Vitamin K is needed to make prothrombin, a substance<br />
that helps the blood to clot. If the blood is unable to clot, we<br />
would bleed to death. Although the disease haemophilia is<br />
not due to a vitamin K deficiency, the deadly results are the<br />
same. Newborns are routinely given an injection of vitamin<br />
K to ensure this clotting factor is present.<br />
Although it is important that our blood can form clots, the<br />
down side is excess clotting, the cause of some strokes, heart<br />
attacks and other serious conditions. As our very own gut<br />
bacteria can produce vitamin K and it is available in food,<br />
particularly vegetables, vitamin K is rarely recommended in<br />
supplement form because of the risk of clotting.<br />
Conditions that might benefit from extra vitamin K (not necessariZy<br />
in supplement fom)<br />
Prolonged menstruation, post-partum haemorrhage, newborn<br />
haemorrhagic disease, bruising and recurrent nosebleeds.<br />
Food sources of vitamin K<br />
Broccoli, lettuce, cabbage, spinach and asparagus.<br />
PABA<br />
Para-aminobenzoic acid, PABA for short, is not actually a<br />
vitamin in its own right, but is a component of folic acid. By<br />
itself, PABA can be used as food for bowel bacteria.<br />
A few years ago PABA had a brief stint as a sunscreen
172 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
agent. However, it proved to be protective against UV-A not<br />
UV-B sunlight, which is the more damaging of the two.<br />
Conditions that might benefit from ext9.a PABA<br />
PABA is rarely needed if sufficient folic acid is being<br />
consumed.<br />
Food sozcrces of PABA<br />
Liver, yeast, whole wheat, molasses, cabbage, sunflower<br />
seeds, spinach and eggs.<br />
Bioflavonoids<br />
Until recently, bioflavonoids were bundled together and<br />
collectively known as vitamin P, put on the back shelf and<br />
ignored. However, amazing new information about the therapeutic<br />
value of these formerly neglected substances have<br />
come to light. Ain't science grand?<br />
Four thousand different types of bioflavonoids have been<br />
isolated, although only 10 or 12 have been extensively<br />
examined. Bioflavonoids (also known as simply flavonoids)<br />
are red, blue and yellow coloured pigments of plants. The<br />
reddish rust colouring in our rivers comes from the tannins<br />
released from fallen gum leaves. Tannins are bioflavonoids.<br />
The intense blue of blueberries and cornflowers comes from<br />
anthocyanidin, another bioflavonoid. Bioflavonoids not only<br />
provide us <strong>with</strong> colour, they also have a potent effect on our<br />
physiology.<br />
The following are the names of a few bioflavonoids and<br />
where they can be found in nature:<br />
Gtfus fmNfs<br />
Buckwheat
Catechin<br />
Cournarin<br />
Quercetin<br />
Anthocyanidins<br />
Tannins<br />
Genestein<br />
Ge~ing to Know Yo@ 173<br />
Green tea, grapeseeds<br />
Soybeans, sprouts<br />
Citrus peel, onions<br />
Blueberries, cherries, red grapes<br />
Wme, tea<br />
Soybeans<br />
Although each bioflavonoid has it own speciality, they all<br />
have some things in common. For instance, they are excellent<br />
antioxidants. Some outdo the already inspiring vitamins E<br />
and C, exceeding their antioxidant potency by up to 50 times.<br />
Antioxidants are useful in the fight against cancer, heart<br />
disease and in supporting the immune system.<br />
Bioflavonoids are believed to explain the reason behind<br />
the 'French Paradox', the discrepancy in France where they<br />
have a high-fat, high-alcohol diet and very low incidence of<br />
heart disease; hence the 'paradox'. It is thought to be the<br />
bioflavonoids found in red wine - proanthocyanidins - which<br />
provide protection against heart disease. Other bioflavonoids,<br />
such as quercetin and catechin found in a variety of fruits and<br />
vegetables, probably play a supporting role in this paradox.<br />
As mentioned previously, in the early days, bioflavonoids<br />
were called vitamin P. The P referred to blood vessel permeability.<br />
The bioflavonoids (rutin and quercetin in particular)<br />
are very good at reducing the permeability of blood vessel<br />
walls and strengthening them. Conditions where this is useful<br />
include varicose veins, easy bruising, haemorrhoids and after<br />
injury or surgery. The bioflavonoids are also anti-inflammatory,<br />
which makes them useful for after-injury support, arthritis,<br />
as well as any illness of an allergic nature, including<br />
asthma, hayfever and sinusitis.
174 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Conditions that might benefit from extra bioflavonoids<br />
Arthritis, cancer, injury, post-surgery, varicose veins, haemorrhoids,<br />
bruising, cataracts, asthma, hayfever, sinusitis, eczema<br />
and heart disease.<br />
Food sources of bioflavonoids<br />
Onions, apples, red wine, tea, green tea, blackberries, red<br />
grapes, cherries, blueberries, capsicum, asparagus, pears,<br />
buckwheat and citrus fruits.<br />
The minerals<br />
Boron<br />
Boron must be a borin' mineral (sorry), because not much<br />
research has been done on its role in the body. Only a speck<br />
of boron is needed to increase calcium uptake into bone. For<br />
this reason, it has been included in some supplements for<br />
women at risk of osteoporosis. There is some evidence that<br />
boron can help <strong>with</strong> arthritis.<br />
Conditions that might benefit from extra boron<br />
Arthritis and osteoporosis.<br />
Foodsowces of boron<br />
Wine, prunes, almonds, raisins, linseeds, parsley, dates, rosehips,<br />
green leafy vegetables, soy and milk.<br />
CaIcfum<br />
Calcium is the pop-star of the mineral world, grabbing all the<br />
attention in the print and film media. However, there is no<br />
smoke <strong>with</strong>out fire and calcium has claims to importance.<br />
Calcium is the most abundant mineral of the body, weighing<br />
in at about 2 per cent of body weight. Most of it is found
Getting to Know You 175<br />
in bones and teeth but it is also necessary for other things,<br />
including the smooth workings of muscles and nerves. It<br />
helps to release muscle spasms and frazzled nerves.<br />
One of the most easily absorbed forms of calcium is osteoapatite,<br />
derived from bone (mostly other animals'). Unfortunately,<br />
lead is also stored in bone and you don't want to be<br />
eating any extra lead if you can avoid it. If you can obtain<br />
the bones of some happy animal raised far away from roads<br />
and pollution, you may eat their bones (makes you want to<br />
be a vegetarian doesn't it?). Apart from munching on a femur,<br />
a good way to release the calcium from bones is to make a<br />
stew or soup using meat and bones, such as lamb shank casserole<br />
or old-fashioned chicken soup.<br />
Times of greatest needs for calcium are times of greatest<br />
growth: during pregnancy, lactation, childhood and teenagerhood<br />
around the time they sprout.<br />
A word about milk. Milk and milk products are a reliable<br />
source of calcium, there is no doubt about that. However, for<br />
a variety of reasons, some people's digestive systems do not<br />
tolerate milk well (see page 114) and these people need to<br />
take special notice of non-dairy, calcium-rich foods (see list<br />
on page 120) or take a supplement. If you are slightly intolerant<br />
to milk, you may find small amounts of yoghurt will be<br />
suitable, or perhaps goat's or sheep's milk products.<br />
Fcactors decreasing calcium absorpion<br />
Too much phosphorus decreases the amount of calcium we<br />
are able to absorb. Phosphorus is found in red meat and carbonated<br />
soft drinks (including fizzy mineral water). Alcohol,<br />
coffee and tea also decrease calcium in the body. Cortisone<br />
drugs deplete the body's stores of calcium also. Most people<br />
on long-term cortisone (for arthritis, pain and so on) will be<br />
on calcium supplements.
176 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Conditions that migk benefit from extra calcium<br />
Osteoporosis, pregnancy, muscle spasms, high blood pressure,<br />
anxiety (especially together <strong>with</strong> insomnia), people on cortisone<br />
drugs and painful periods.<br />
Peri- and post-menopause is a time when extra calcium<br />
may be required. Oestrogen helps keep calcium in the bones.<br />
Menopause means a depletion of oestrogen production, so<br />
this is a time you need to keep your eye on bone density, as<br />
osteoporosis is much more likely at this time. It may be<br />
worthwhile to have a bone density check.<br />
Food sources of calcium<br />
Cheese, milk, bone meal, carob, kelp, oats, parsley, broccoli,<br />
whole grains, linseeds (ground), sesame seeds, almonds, soy,<br />
sardines and salmon <strong>with</strong> bone and figs.<br />
Chromium<br />
Chromium is another one of the minerals that we need in<br />
tiny amounts but if we don't have enough it makes life<br />
awkward, in fact, a non-event.<br />
Chromium stars in the area of glucose processing - the<br />
most valuable energy molecule we know. In order for glucose<br />
to enter cells where it can be converted into energy, the<br />
hormone insulin is needed. Perched on the cell membrane is<br />
a little molecule called Glucose Tolerance Factor (GTF),<br />
which helps insulin push glucose into the cell. GTF is a molecule<br />
made up of some B vitamins, amino acids and<br />
chromium.<br />
Conditions that might benefit from extra chromizcm<br />
Diabetes (but if you rely on insulin, check <strong>with</strong> your doctor<br />
first as the chromium may decrease your insulin requirements),<br />
sugar cravings and atherosclerosis.
Getting to Know You 177<br />
Food sources of chromium<br />
Chromium is good stuff, but don't start munching on your<br />
chrome bumper bar yet. There are different forms of chromium<br />
and the type in metal plating, cement, rubber, pollution<br />
and photographics is not the type to ingest. Food that<br />
contains the 'good' chromium includes brewer's yeast, torula<br />
yeast, liver, whole grains and pepper.<br />
Copper<br />
When talking mineral supplements, copper doesn't usually<br />
spring to mind. However, as time passes research keeps<br />
coming up <strong>with</strong> interesting information about its role. For<br />
instance, copper is required in the formation of haemoglobin,<br />
the iron-containing, oxygen-carrying molecule. In fact, copper<br />
assists iron absorption. Copper also helps in the assimilation<br />
of calcium into bone, so it is quite a helpful adjunct to the<br />
treatment of osteoporosis.<br />
Remember when copper bracelets were a hip fashion statement?<br />
As a remedy for arthritis, absorbing the copper from<br />
jewellery via the skin might have some basis - copper is<br />
required for the antioxidant enzyme, superoxide dismutase,<br />
to help stop free radical damage and is also necessary for<br />
collagen synthesis. It is also a component of the pigment<br />
melanin, necessary for skin and hair colour. Apparently<br />
copper also dictates hair curliness, which conflicts <strong>with</strong> the<br />
historic notion of sandwich crusts causing curls.<br />
Conditions that might benefit from extra copper<br />
The Michael Jackson disease, vitiligo; rheumatoid and osteoarthritis;<br />
and anaemia.<br />
Food sources of copper<br />
Oysters, brazil nuts, soy, lecithin, almonds, dry split peas,<br />
mushrooms, chocolate and cocoa.
178 Tde Commonsense Guide to <strong>Eating</strong> WeiZ<br />
Fluorine<br />
Fluorine is one hot potato of a mineral. Over the years there<br />
have been many tears and fisticuffs about the question of<br />
fluoridating community water supplies. (A note on definitions:<br />
fluorine is the codger featured in the periodic table as<br />
a yellow gas travelling under the moniker 'F', fluoride is the<br />
biologically active form of fluorine.)<br />
Fluoride plays a role in helping keep calcium in place in<br />
bones and teeth. In bones, it is found in the form of calcium<br />
fluoride, not in the form sodium fluoride, which is added to<br />
our water. Fluoride appears to prevent dental cavities in<br />
growing teeth. It has most effect topically; that is, in direct<br />
contact <strong>with</strong> teeth or in young children when the teeth have<br />
not yet erupted. A mottling or discolouration of teeth, called<br />
dental fluorosis, is common among young peopIe growing up<br />
<strong>with</strong> fluoridated water. There is little evidence that drinking<br />
fluoridated water assists adult teeth. Of more concern is the<br />
theory that is steadily gaining strength that an excess of fluoride<br />
(particularly sodium fluoride) over a period of time can lead to<br />
arthritis-like symptoms and even osteoporosis. Adding sodium<br />
fluoride to the drinking water continues in Australia, New<br />
Zealand and parts of America although it has been banned in<br />
Japan, Scandinavia and most of Europe.<br />
Conditions that migAt benefit from extra fluoride<br />
As fluoride is added to our water supply and as a consequence<br />
is also in processed foods that use water, generally no-one<br />
needs extra fluoride. However, the supplement calcium fluoride,<br />
which is given in tiny doses (Calc fluor) may help in<br />
conditions showing a weakness of connective tissues such as<br />
varicose veins and haemorrhoids.
Getting to Know You 179<br />
Foods containing fluoride<br />
Water, tea, toothpaste, fish and processed drinks and foods<br />
that contain water.<br />
Iron<br />
Everyone knows about iron, but no-one seems to get enough<br />
of the stuff. Over 40 per cent of Australian women simply do<br />
not eat enough iron for their needs. Signs you are deficient<br />
in iron include looking pale, feeling weak and dizzy, cold<br />
hands and feet, a lack of energy, irritability and cravings for<br />
weird things like dirt and ice (called pica). Of course, not<br />
everyone who is tired is iron deficient, known as anaemic.<br />
Before you hoe into an iron supplement ask your doctor if<br />
she thinks you need an iron test, which is a simple blood test.<br />
One of the reasons iron is so important is that it is part of a<br />
compound called haemoglobin, which is found in all red blood<br />
cells; in fact, it is responsible for the red colour of red blood<br />
cells. Haemoglobin is partly protein, partly iron and it is this<br />
molecule that is capable of holding onto oxygen, the very<br />
oxygen necessary for our survival. With less iron there is less<br />
haemoglobin; <strong>with</strong> less haemoglobin there is less oxygen available<br />
to all the cells of the body, including the brain. No wonder<br />
you feel tired! The brain cannot function properly, nor can<br />
muscles. You feel physically and mentally drained.<br />
Although iron is so vital, we don't want too much of the stuff<br />
on board, as it can oxidise - literally rust - and cause free radical<br />
damage to cells. Our body accommodates this by being very<br />
thrifty <strong>with</strong> iron. As the iron-containing red blood cells die<br />
(every 120 days) the iron is recycled. We also have a vat of iron<br />
stored for an anaemic day, this is called haemosiderin.<br />
Although red blood cells need iron for haemoglobin, there<br />
are other nutrients necessary for the formation of haemoglobin<br />
and the red blood cell itself, These include B9, B12,<br />
B5, B6 and B13 (orotic acid). If there is a deficiency of one
180 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
of these nutrients, this will also cause anaemia. As there is<br />
such a thing as too much iron, it is doubly important that you<br />
get tested for iron deficiency first, as your symptoms could<br />
well be due to a deficiency of these vitamins, particularly B9<br />
and B12.<br />
Iron is one of the most difficult minerals to absorb. We<br />
absorb as little as 10 per cent of the iron we eat depending<br />
on our needs, the type of iron and the state of our digestive<br />
system. The most easily absorbed iron is known as 'haem<br />
iron', which comes from animals. Not surprisingly, we are<br />
better able to absorb a molecule that is similar to our homemade<br />
haem. Haem iron is higher in red meat such as beef<br />
and lamb and lower in fish and poultry. There is very little<br />
iron in milk, cheese and eggs. Vegetables such as spinach,<br />
parsley and kelp contain heaps of iron, but unfortunately the<br />
iron is in the less absorbable non-haem form.<br />
For peak iron absorption our digestive tract needs to be in<br />
tip-top form. Iron in the non-haem form (vegetables, grains<br />
and so on) is better absorbed if there is some acid around.<br />
Stomach acid will do nicely, however, many people have low<br />
stomach acid levels. Other kinds of acid, particularly ascorbic<br />
acid, aka vitamin C, will boost iron absorption. So adding a<br />
few drops of lemon juice to your salad dressing, or drinking<br />
a glass of orange juice <strong>with</strong> your morning cereal has some<br />
merit.<br />
A few things in the diet interfere <strong>with</strong> iron absorption,<br />
especially tea and coffee - don't drink them while you are<br />
eating iron-rich foods. Another item which inhibits the<br />
optimum absorption or iron are phytates. Phytates are substances<br />
found in high-fibre foods, including grains and<br />
legumes (see page 32). Phytates are only a problem if you are<br />
a raw-fibre freak, adding cups of bran to your diet. Phytates<br />
are destroyed by heat, so cooked grains (like bread and porridge)<br />
and beans are fine.
Getting to Know You 181<br />
Iron szcpplements<br />
From time to time some people need to take an iron supplement.<br />
As iron is such a tricky customer due to its poor absorption,<br />
it is important to take a supplement that is well absorbed<br />
but causes no problems. The most commonly prescribed iron<br />
supplement is iron sulphate. This is absorbed very well<br />
indeed, but unfortunately side-effects such as constipation,<br />
nausea and stomach cramps are very common. A happy compromise<br />
is iron attached to protein, called iron aminoate. This<br />
is fairly similar in structure to haem iron, the one favoured<br />
by the body.<br />
Conditions that might benefit from extra iron<br />
Heavy periods, pregnancy, endurance athletics (particularly<br />
joggers where the constant jarring destroys red blood cells),<br />
bowel disorders (malabsorption or ulceration where the iron<br />
is either not absorbed at all or lost in the stool), excessive<br />
bleeding.<br />
Food sources of iron<br />
Kelp, red meat, molasses, liver, wheatgerm, wheat bran,<br />
parsley, oysters, sunflower seeds, dried prunes and spinach.<br />
Iodine<br />
Iodine is part of the thyroid hormone thyroxine. The thyroid<br />
is the gland located at the base of the neck; it regulates our<br />
metabolic rate. If it is over- or under-functioning, the thyroid<br />
gland can swell up into a goitre. The thyroid hormones regulate<br />
how much energy the body makes, or doesn't make; and<br />
maintains female and male fertility and libido among other<br />
things.<br />
Signs of being low in iodine include sluggishness, weight<br />
gain, constipation, loss of libido, irregular menstruation,<br />
goitre, loss of hair and brittle nails.
182 The Comonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
There are certain geographical areas where the soil is deficient<br />
in iodine, including the Himalayas and the Hunter<br />
Valley in New South Wales, glamorously called 'goitre belts'<br />
as more people develop goitres who live in these areas. You<br />
don't see too much of this nowadays, as most salt has iodine<br />
added, that is, 'iodised salt'.<br />
Iodine protects against radiation toxicity. After Chernobyl,<br />
the shops were bought out of seaweed, a rich source of iodine.<br />
Conditions that might benefit from extra iodine<br />
Overweight, low metabolism, radiotherapy treatment.<br />
People <strong>with</strong> the symptoms of low thyroid function, as outlined<br />
above, may benefit from eating foods rich in iodine,<br />
particularly a seaweed supplement. Do not take iodine as an<br />
extra supplement unless prescribed by your physician as you<br />
could cause an imbalance in thyroid function.<br />
Food sources of iodine .<br />
Iodised salt, kelp, seaweed, clams, oysters and fish.<br />
Potassium<br />
Potassium is necessary for regulation of our pH or acid<br />
balance and for the proper functioning of nerves and muscles.<br />
Potassium and sodium have an intense relationship: mostly<br />
they act opposite one another in the body. Too much sodium<br />
causes too little potassium, rarely is it the other way around.<br />
Potassium is particularly helpful for the heart, where there<br />
are palpitations, and even high blood pressure.<br />
Conditions that might benefit from extra potmsium<br />
Weak heart, weak muscles, nervous disposition and palpitations.<br />
People taking certain drugs, including diuretics, often<br />
need to be on extra potassium.
Gemkg to Know You 183<br />
Food sources of potassium<br />
Avocados, bananas, asparagus, tomatoes, kelp, molasses, cocoa<br />
powder, soybeans, dried apricots, sunflower seeds, prunes,<br />
lentils, almonds and parsley.<br />
Magnesium<br />
Magnesium has a hectic work and social schedule. Responsible<br />
for over 300 enzyme reactions in the body, magnesium<br />
also finds the time to assist other vitamins and minerals, such<br />
as vitamins C and E, the 3 complex as well as calcium, phosphorus,<br />
sodium and potassium.<br />
In practice, magnesium is invaluable in helping to relieve<br />
stiff muscles and muscle cramps. Magnesium helps relax all<br />
muscles including skeletal muscles, the heart muscle and the<br />
bowel wall and blood vessels, which are both smooth muscle.<br />
Excellent for problems ranging from painful period cramps,<br />
stiff neck and back, to high blood pressure and even constipation.<br />
Magnesium is vital in the production of energy. It is<br />
the central molecule in chlorophyll, the compound in plants<br />
that traps the energy from sunlight.<br />
Conditions t/tat mig4t benefit from extra magnesium<br />
High blood pressure, menstrual cramps, irritable bowel syndrome,<br />
anxiety, muscle weakness, leg cramps, kidney stones,<br />
tremors.<br />
Food sources of magnesium<br />
Whole grains, green vegetables, soybeans, seafood, figs, corn,<br />
apples, peaches and apricots.<br />
Manganese<br />
There is only about 20 milligrams (the size of a small pill)<br />
worth of manganese in the average 70 kilogram person. Nevertheless,<br />
manganese is a vital trace mineral. It forms part of
184 The Commonsense Gde<br />
to <strong>Eating</strong> <strong>Well</strong><br />
an antioxidant complex, as well as playing a very important<br />
role in the formation of cartilage. For both these reasons,<br />
manganese is particularly useful as an adjunct in the treatment<br />
of arthritis.<br />
Tinnitus is a ringing sound in the ears that sufferers find<br />
maddening. Even more maddening is that no-one seems to<br />
know the cause, or a cure. Manganese is necessary for the<br />
formation of tiny little calcium rocks called otiliths, which<br />
help us <strong>with</strong> our hearing and sense of balance. Some people<br />
have found that taking a supplement containing manganese<br />
has helped improve their tinnitus. Just an idea.<br />
Manganese also plays a part in helping to stabilise glucose<br />
levels in the bloodstream, hence its use in diabetes, hypoglycaemia<br />
and sugar cravings.<br />
Conditions that might benefit from extra manganese<br />
Diabetes, sugar craving, hypoglycaemia, arthritis and tinnitus.<br />
Food sources of manganese<br />
Tea, rice bran, wheat bran, pecans, brazil nuts, almonds, oats,<br />
rye, barley, alfalfa, cloves and ginger.<br />
Molybdenum<br />
Not much is known or spoken about molybdenum, probably<br />
due to its unpronounceability. It appears as a coenzyme for<br />
several antioxidant enzymes. It is likely that more information<br />
on the importance of molybdenum will come to light<br />
in the near future. Rather interestingly, it seems to decrease<br />
a sensitivity to sulphates. Some people are intolerant of<br />
sulphur compounds, which are often found as food additives<br />
in wine, beer and dried fruit.<br />
Conditions that might benefit from extra molybdenum<br />
Cancer and ageing.
Getting to Know You 185<br />
Food sources of molybdenum<br />
Lentils, liver, cauliflower, brewer's yeast, spinach, garlic, oats<br />
and fish.<br />
Sodlum<br />
Sodium has been branded as the bad guy of the mineral<br />
world - which is kind of strange considering if we don't have<br />
sodium we die. We normally associate sodium <strong>with</strong> table salt,<br />
which is actually a combination of sodium and chloride. For<br />
the purists, a salt is a compound that can form a crystal made<br />
out of an acid and a base, sodium chloride being one example.<br />
Salt was once expensive, whereas now it as cheap as chips.<br />
The word 'salary' is derived from salt and was the payment<br />
made by the ancient Romans to their soldiers. The proverbs<br />
'salt of the earth' and 'not worth your salt' reveal salt's abiding<br />
value. The primal slimists believe we originated in the sea<br />
and our body chemistry reflects these beginnings. This could<br />
explain why the number of people <strong>with</strong> a salty tooth equals<br />
those <strong>with</strong> a sweet tooth. The kidney preferentially holds on<br />
to sodium, allowing other minerals to be excreted in sodium's<br />
stead.<br />
Sodium keeps fluid in the body, between the cells and<br />
swimming in blood vessels. Along <strong>with</strong> potassium, it maintains<br />
our pH or acid base balance as well as giving permission<br />
for certain substances to enter and leave cells. The primary<br />
digestive fluid of the stomach - hydrochloric acid - requires<br />
sodium.<br />
The main reason sodium has been vilified has been the<br />
association between high blood pressure and sodium. High<br />
blood pressure is one of the risk factors for a heart attack. As<br />
sodium is preferentially retained by the kidneys, more water<br />
is retained in the body, thereby increasing blood volume and<br />
hence blood pressure. However, a sizeable study of 10 000
186 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
people by the British Medical Journal revealed that not everybody<br />
responds in this way. There is even some talk of the<br />
chloride content of salt being to blame. It is pretty rare to<br />
need extra salt, and we should avoid processed, salted foods.<br />
Conditions that might benefit from extra sodium<br />
Diarrhoea and vomiting, which can leave the body depleted<br />
of many minerals, especially sodium; lots and lots of sweating,<br />
although it is better to replace <strong>with</strong> several salts, not just<br />
sodium; severe and prolonged stress can cause the adrenal<br />
glands, which live on top of the kidneys, to cause the kidneys<br />
to lose excess salt. Listen to your body if you have salt cravings<br />
during periods of stress.<br />
Food sources of sodium<br />
Salt, soy sauce, processed meats, yellow cheese, breakfast<br />
cereals, vegemite, marmite, olives and celery. Few people<br />
need to add table salt to their food. There are some 'natural<br />
health salts' available that contain a variety of other minerals,<br />
including some of the more unusual trace elements. If your<br />
diet is mainly free of processed foods, adding some of this<br />
sea salt is okay.<br />
Nickel<br />
In general we are better advised to avoid nickel than to seek<br />
it out. Nickel, however, tends to seek us out as it is a common<br />
by-product of many industrial processes, car exhaust, heating<br />
fuel and cigarettes. Some people are overly sensitive to<br />
nickel, which is present in jewellery. The most common reaction<br />
is an eczema-like rash.<br />
Enough said about the nasty side of nickel, we do in fact<br />
need nickel in small amounts. It appears to be important for<br />
our nuclear material, DNA and RNA, as well as featuring in<br />
several enzymes.
Getting to Know You 187<br />
Conditions that might bendit from extra nickel<br />
It is highly unlikely that people would require nickel supplements;<br />
we tend to get more than we require due to the nickel<br />
in our polluted environment. High levels of nickel may be<br />
associated <strong>with</strong> an increased risk of cancer and heart disease,<br />
headache, nausea and vomiting. One way of detecting excess<br />
nickel is by means of hair analysis, which is a specialised<br />
method of detecting mineral toxicity.<br />
Food sources of nickel<br />
Soybeans, beans, grains, walnuts and hazelnuts. Other sources<br />
include stainless steel cookware, auto exhaust, coal and oil<br />
burners, margarine and detergent.<br />
Sulphur<br />
Sulphur (also spelt sulfur) who signs off as 'S' is responsible<br />
for the pungent smell of eggs, burnt hair (if you have ever<br />
singed your eyebrows while barbecueing a snag you'll recognise<br />
the. smell), the stench you'd expect around hellfire and<br />
brimstone (the archaic name for sulphur) and the air around<br />
the hot volcanic mudsprings of Rotorua. Maybe 'S' stands for<br />
'smelly'. Smell aside, sulphur is reputed to be the beauty<br />
mineral, giving shine to hair and strength to nails. Horses that<br />
are fed sulphur-rich molasses have magnificent glossy coats.<br />
Sulphur sneaks into our diet bound to other items. It is an<br />
important element in three amino acids: methionine, cysteine<br />
and taurine. Protein foods high in these sulphur-containing<br />
amino acids include eggs, nuts and beans. All three amino<br />
acids are used in the detoxifying systems of the body, helping<br />
to remove and inactivate free radicals and other toxins. Garlic<br />
is well known as a detoxifier, in part due to its high sulphur<br />
content. The detoxifying compounds need sulphur to work.<br />
Sulphur itself is antibacterial and antifungal, which led to
188 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
its use in revolutionising medicine as part of the early sulphonamide<br />
antibiotics in the 1930s. These antibiotics have<br />
now been superseded as the generations of bacteria have<br />
become more and more resistant to medication.<br />
Sulphur helps form a type of tissue called glyco-proteins.<br />
These include cartilage, tendons and ligaments - the strong,<br />
stringy, spongy tissue that protects and holds together joints.<br />
It is often this tissue that becomes damaged in arthritis.<br />
The down side of sulphur is that some people can be sensitive<br />
to it, particularly when it is in the form of sulphite or<br />
sulphur dioxide. Asthma-like reactions are most common in<br />
those who are sensitive, as there are sulphite sensitive receptors<br />
in the mouth that can cause spasm of the bronchial tubes.<br />
Skin rashes are another common side-effect. If you fall in this<br />
group, foods to beware of include dried apricots (and all<br />
sulphur-dried fruits), beer, champagne, wine, pickled onions<br />
and cordials. The additive code numbers to watch for are 220,<br />
221, 222, 223 and 224. The sulphur-containing antibiotics<br />
(mentioned previously) may also cause a reaction in the sensitive<br />
individual.<br />
Conditions that might benefit from extra su&hur<br />
Liver problems, including hepatitis; an overload of chemicals<br />
or toxins (the liver needing help to detoxify); limp, lacklustre<br />
hair; and arthritis sufferers.<br />
Food sources of su&hur<br />
Meat, eggs, onions, garlic, cabbage, brussels sprouts, beans,<br />
sesame seeds, brazil nuts and molasses.<br />
Selenium<br />
Selenium is intimately involved <strong>with</strong> an antioxidant called<br />
glutathione peroxidase. Without selenium, this antioxidant is<br />
rendered powerless. Some researchers believe selenium is a
Getting to Know You 189<br />
key nutrient in preventing cancer, atherosclerosis and poor<br />
immune function. Selenium is also effective as an adjunct to<br />
the treatment of dandruff and psoriasis: it is available to use<br />
topically in some shampoo formulations. Similar to iodine,<br />
selenium is protective against the damage of radiation.<br />
Although selenium is freely available as a supplement in<br />
other countries, at this point in time you will need a prescription<br />
to obtain selenium in Australia.<br />
Conditions that might benefit from extra selenium<br />
Poor immune response; cancer; dandruff; psoriasis; heart<br />
disease; and radiotherapy treatment.<br />
Food sources of selenium<br />
Arabian dates, herring, whitebait, brazil nuts, eggs and brewer's<br />
yeast. Unfortunately, Australian soils are very low in selenium<br />
so even though foods such as garlic and grains should<br />
be rich in selenium, if the soil can't provide it, selenium<br />
won't be present in the food.<br />
Vanad turn<br />
Vanadium has a Space Age ring to it. You can imagine Judy<br />
Jetson asking her hubby for a vanadium ring for her birthday.<br />
It may be that the full personality of vanadium will be<br />
revealed on space station Mir in the year 1299, because at<br />
the present time we don't know squat (not a sausage) about<br />
the therapeutic possibilities of this mineral.<br />
There are, however, a few bits and pieces that are known<br />
about vanadium. It seems to have a role in revving up the<br />
insulin receptors on cell membranes. This would have good<br />
implications for diabetes. Vanadium has a role in bone and<br />
tooth development as well.
I90<br />
The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Conditions that might benefit from extra vanadizcm<br />
Diabetes, high cholesterol, atherosclerosis.<br />
Food sources of vanadium<br />
Buckwheat, parsley, soybeans, safflower oil and sunflower<br />
seeds.<br />
Zinc<br />
Zinc is another tricky mineral to absorb. As it is also in short<br />
supply in Australian soils, it comes as no surprise that around<br />
55 per cent of men and 80 per cent of women are zinc<br />
deficient.<br />
Zinc, the middle-man mineral<br />
Unlike calcium, which forms part of our skeletal structure and<br />
iron, which is a necessary component of red blood cells, zinc<br />
is a middle-man mineral. Zinc is necessary for the smooth<br />
functioning of over 200 enzymes. Enzymes are things that<br />
speed up reactions <strong>with</strong>out being used up themselves in the<br />
reaction. Sometimes they need coenzymes such as zinc in<br />
order to operate. Without zinc, no enzyme. Without enzyme,<br />
no reaction. For instance, the enzyme alcohol dehydrogenase<br />
needs zinc in order to start the conversion of alcohol so that<br />
it can be eliminated from the body. Without enough zinc,<br />
this enzyme will not function effectively, thereby allowing<br />
alcohol to keep circulating and continue damaging the body.<br />
Although we require only tiny amounts of zinc, there is no<br />
underestimating the importance of this nutrient. Zinc is<br />
required for tastebuds and olfactory (smell) receptors. In fact,<br />
one of the deficiency signs of zinc is a decreased sense of<br />
smell, taste and, consequently, appetite. Another deficiency<br />
sign is white spots on the fingernails. Zinc is needed by the<br />
immune system, especially in the manufacture of T-cells.
Getting to Know You 191<br />
Without zinc, vitamin A is poorly utilised, having repercussions<br />
for our eyesight and skin. Zinc is important for a<br />
healthy pregnancy. Zinc is also needed by the hormonal<br />
system, especially the male hormones. Men have a special<br />
need for zinc as 2 to 5 milligrams of zinc is lost in each ejaculation.<br />
Zinc is needed for healthy sperm.<br />
As zinc depends on the support of vitamin B6 and magnesium,<br />
you will often find supplements featuring this nutrient<br />
triumvirate.<br />
Conditions that might benefit from extra zinc<br />
Skin problems such as acne, eczema or psoriasis (in combination<br />
<strong>with</strong> vitamin A); low libido, infertility and impotence;<br />
loss of smell, taste and appetite; poor immune response, lots<br />
of colds, shingles, sore throat and mouth ulcers (taken in combination<br />
<strong>with</strong> vitamin C).<br />
Food sources of zinc<br />
Fresh oysters, crab, ginger root, meat, egg yolk, pecan and<br />
brazil nuts.
NUTS AND BOLTS
Good Diet<br />
On the whole, my patients have pretty good diets. Most of<br />
what I do is a bit of tidying up and reminding them of what<br />
they already know. Removing a little fat here, adding a little<br />
fibre and protein there. Suggesting a piece of fruit may<br />
improve things and perhaps a glass or two less of alcohol. All<br />
gentle prods in the right direction.<br />
But just what is the right direction? This chapter gives<br />
some broad guidelines that will help you formulate an eating<br />
plan to improve your health. A healthy eating plan is one you<br />
enjoy, is sensible, and has enough treats to keep you happy.<br />
Happiness cannot be overrated when it comes to health. If<br />
you have trouble formulating your own diet, ask for help from<br />
a naturopath or dietician, and tell them what you want.<br />
Negotiate - there is no point walking out of an appointment<br />
<strong>with</strong> a useless piece of paper telling you to do things you<br />
know you don't want to do. And paying good money for the<br />
privilege.<br />
People choose food for a variety of conscious and<br />
subconscious reasons: cultural identity, family preferences,
196 Tde Commonsense Gzride to <strong>Eating</strong> <strong>Well</strong><br />
advertising, eating disorders, poverty and politics. Information<br />
is power - the more you know about food, the better<br />
chance you'have of choosing a diet that suits you and is<br />
healthy too. The following guidelines are cornerstones on<br />
which to base your eating plan.<br />
Before looking at features that make up a good diet, let's<br />
look at some of the problems of the typical Aussie diet.<br />
The Australian diet is one of the fattiest in the world,<br />
although we are heading in the right downward direction.<br />
Too much dietary fat is related to heart disease,<br />
stroke, high blood pressure, diabetes, gallstones and<br />
certain cancers. Obvious culprits are sausages, deli<br />
meat and fried food but also watch those goodies<br />
misnamed as 'health foods', such as muffins, toasted<br />
muesli, carob and tofu ice-cream.<br />
The average Australian consumes 230 teaspoons of<br />
sugar weekly. Very little is added by the teaspoonful;<br />
sugar is found in ice-cream, biscuits, sauce, even<br />
pizzas. <strong>Health</strong> problems associated <strong>with</strong> excess sugar<br />
include atherosclerosis, diabetes mellttus, child behavioural<br />
problems, gallstones, colo-rectal cancer, hypertension,<br />
CHD, obesity, Crohn's disease, kidney stones<br />
and holes in the teeth.<br />
Too much salt. Australians on average tend to<br />
consume 10 to 20 times the recommended amount<br />
of 920 to 2300 milligrams per day. Processed food is<br />
the major culprit here.<br />
The average Aussie adult consumes a yearly average<br />
of 500 middies of beer, 185 glasses of wine and 115<br />
nips of spirits. Considering many folk don't drink,<br />
some people are drinking over the recommended one<br />
to two drinks dally. Excess alcohol contributes to heart
Good Diet 197<br />
disease, obesity, diabetes, cancer, pancreatitis, her<br />
damage and brain damage.<br />
We eat about 15 grams of fibre daily, half the recommended<br />
intake of 30 grams. Diseases associated<br />
<strong>with</strong> insufficient fibre include heart disease, obesity,<br />
diabetes, constipation and cancer.<br />
I<br />
Cornerstones to good nutrition<br />
Nutrient density<br />
Time is precious, don't waste it. The same can be said for<br />
food. Make each mouthful count; as full of nutrition as possible.<br />
I don't mean calorie-rich food but food that crams in<br />
as many micronutrients as possible. For example, take a sandwich.<br />
Sandwich (1) a Vegemite sandwich <strong>with</strong> margarine on<br />
white bread. Sandwich (2) a tuna sandwich <strong>with</strong> sprouts, beetroot<br />
and a scrape of avocado on wholemeal. Both are sandwiches,<br />
but one is a nutritional waste of time.<br />
Farnilirdty breeds contempt<br />
Our nomadic hunter-gatherer forebears ate a greater variety<br />
of foods than we do today. Mainly because they moved from<br />
region to region. Nowadays, we get very stuck in our ways:<br />
if it's Tuesday it's chops, potatoes and peas; if it's Saturday<br />
it must be Thai take-away.<br />
<strong>Eating</strong> new foods is scary. Learn from a friend whose<br />
family comes from a different ethnic background, or when<br />
you go out for dinner, choose a cuisine you are not familiar<br />
<strong>with</strong>. Be adventurous. A few dishes might be duds, but the<br />
chances are you will enhance your repetoire of food: dhal<br />
(lentil curry) from India, hommos from Lebanon, tofu from<br />
China. Another way of ensuring variety in your diet is to<br />
choose foods of different colours, particularly the fruits and
198 The C~ommonsense Guide to <strong>Eating</strong> WeiZ<br />
vegetables. Eat vegetables and fruits that are yellow, green,<br />
white and red.<br />
Grains are another culinary rut in which we tend to fall.<br />
Wheat, in particular, is difficult to avoid. Look to other grains,<br />
including rye, millet, corn, barley and oats. Try different milk<br />
products, including cow, sheep, goat, soy, almond and rice.<br />
Along the same lines, try to include foods that have a variety<br />
of tastes: salty, sweet, bitter and sour.<br />
Reguldty is worthy of regard<br />
Breakfast literally means to break your overnight fast. Unless<br />
you raid the fridge at 2 am, the likelihood is that your body<br />
goes <strong>with</strong>out nourishment from after dinner, say 7.30 pm<br />
until breakfast the following morning, say 7.30 am. This is a<br />
12-hour gap when the body is not receiving nutrients. The<br />
body can cope <strong>with</strong> this overnight fast, but any longer and<br />
trouble starts.<br />
Many people feel too rushed in the morning to think about<br />
preparing breakfast, let alone eating it. Maybe they grab a<br />
bite to eat when they arrive at work, or after dropping the<br />
kids off at school. Some people miss breakfast altogether, not<br />
eating until 11 or 12 noon or sometimes 3 pm. A 19-hour fast!<br />
Not only are your blood sugar levels going to be down to<br />
blazes, your metabolic rate will resemble that of a slug's.<br />
Treat your body like a good friend - give it nourishment<br />
regularly. Don't abuse the friendship by missing meals. Eat<br />
a good meal at least three times a day. Even more if you have<br />
a tendency for your sugar levels to drop, making you feel tired<br />
and tetchy between meals.<br />
Fresh is best<br />
Fresh food is the go, rather than processed, frozen or preprepared.<br />
Of course, it depends a lot on your lifestyle. A good<br />
meal made at the weekend when you have the time and
Good Diet 199<br />
frozen for those busy weeknights, is a lot better than a takeaway<br />
meal, or a bag of chips.<br />
When practical, eat your food in season. In the middle of<br />
winter, choose oranges and crisp apples rather than canned<br />
mangoes or imported tropical fruit. <strong>Eating</strong> food grown from<br />
the same environment, or as close as possible, is desirable,<br />
not only to be sure of freshness but also from the more philosophical<br />
stance of being connected to our environment,<br />
cementing a sense of belonging.<br />
Whole foods<br />
Choose the whole food rather than a processed version. For<br />
instance, eat the whole fruit rather than drinking the juice;<br />
go for wholegrain flour products rather than white. You will<br />
be assured of an assortment of nutrients, including fibre, vitamins<br />
and minerals normally thrown away in the processing of<br />
foods.<br />
Digestion<br />
If your digestion is poor, the best nutrition will come to<br />
nought. Some points to remember: chew each mouthful well;<br />
avoid overeating, particularly at night before going to bed;<br />
and don't drink more than 500 millilitres of fluid <strong>with</strong> your<br />
meal, because you will dilute digestive juices. It is fine to<br />
drink more than 30 minutes before a meal or a couple of<br />
hours after, when your meal has departed the stomach.<br />
Minimlse '111th' foods<br />
'111th foods' is a phrase coined by Australian doctor Ian<br />
Brighthope, which is a perfect description of the foods that<br />
can be detrimental to our health. These include coffee<br />
(including decaf), alcohol, cigarettes, artificial sweeteners,<br />
chewing gum, deli meats, carbonated soft drinks, cooking oils,
200 The Commonsense Ggide to <strong>Eating</strong> <strong>Well</strong><br />
fried foods, salt and sugar. Minimise does not mean avoid,<br />
but take it easy <strong>with</strong> these illth foods.<br />
The following is a chart detailing the ins and outs of a<br />
nutritionally complete eating plan for an average adult, <strong>with</strong><br />
total calories averaging 2300 per day.<br />
ESSENTIALS<br />
FAT<br />
CARBOHYDRATE<br />
PROTEIN<br />
FIBRE<br />
AMOUNT<br />
30% OF DAILY INTAKE<br />
65-70% OF DAILY INTAKE<br />
20% OF DAILY INTAKE<br />
30 g PER DAY<br />
FOODS<br />
FAT<br />
MEAT & MEAT<br />
ALTERNATIVES<br />
DAILY REQUIREMENTS<br />
4 SERVINGS<br />
1 serving<br />
= 1 tsp butter, oil (cold pressed<br />
preferred), eg. olive oil<br />
= 10 g nuts, 2 tspn nut butter (not<br />
peanut)<br />
= 114 medium avocado<br />
2-3 SERVINGS<br />
1 serving<br />
= 100 g lean meat, chicken (no skin),<br />
fish (including canned fish in brine or<br />
water)<br />
= 1 cup cooked legumes (peas, beans)<br />
= 1 egg<br />
Note: Fish 4 x week. Vegetarian meal<br />
2 x week.
Good Diet 201<br />
FOODS<br />
MILK &<br />
ALTERNATIVES<br />
BREADS &<br />
CEREALS<br />
DAILY REQUIREMENTS<br />
2-3 SERVINGS<br />
1 serving<br />
= 250 mls cow, goat, soy milk (low fat)<br />
= 200 g plain yoghurt (low fat)<br />
= 200 g cottage cheese, tofu<br />
= 25 g, 2 slices hard cheese<br />
= 1 scoop ice-cream (not recommended<br />
daily)<br />
Note: If cow's milk (casein) intolerant,<br />
alternatives include goat, sheep, soy.<br />
Often a little yoghurt is tolerated and<br />
ricotta cheese (made on whey protein<br />
not casein). If lactose intolerant,<br />
choose lactose-free milks, lactase<br />
tablets.<br />
4-5 SERVINGS<br />
1 serving<br />
= 309<br />
= 1 slice bread (wholemeal)<br />
= 1 bread roll (wholemeal)<br />
= 3 crispbreads<br />
= 4 rice cakes<br />
= % cup cooked rice (brown)<br />
= % CUP cooked pasta (wholemeal)<br />
= 3/4 CUP cooked wholegrain, eg oats<br />
Note: Grains should be varied, eg. oats,<br />
barley, millet, buckwheat, rye. Less<br />
emphasis on wheat. If vegetarian<br />
combine grains and legumes for<br />
complete protein combination.
202 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
FOODS<br />
FRUIT<br />
VEGETABLES<br />
ADDITIONS AND<br />
OPTIONS<br />
DAILY REQUIREMENTS<br />
2-3 SERVINGS<br />
1 serving<br />
= 1 medium piece of fruit<br />
= 2 half-dried apricots, 4 dates<br />
= 1 tablespoon dried fruit<br />
= ?4 CUP cooked fruit<br />
= ?4 CUP fruit juice<br />
Note: Fruit to be mostly raw. 1 piece to<br />
be citrus. Choose a variety of coloured<br />
fruits: yellow, orange, red.<br />
5 SERVINGS MINIMUM<br />
1 serving<br />
= 1 potato<br />
= ?4 CUP vegetables.<br />
Note: Include flowering tops, leaves, as<br />
well as root vegetables.<br />
2 litres filtered water daily<br />
Options:<br />
1 to 2 glasses wine (bottle wine)<br />
maximum 5 serves/week<br />
(1 or more alcohol-free days per week)<br />
1 to 2 coffee or tea daily<br />
Herbal teas, dandelion coffee, etc.<br />
The following is an example of how to put this diet together.<br />
On rising<br />
Juice of half lemon in hot water (honey optional) or<br />
Teaspoon apple cider vinegar and honey in hot water (in<br />
winter add a slice of fresh ginger to the drink as this is<br />
warming and aids circulation) or<br />
Freshly squeezed grapefruit juice or<br />
Miso soup
Good Diet 203<br />
Breakfast<br />
Fresh seasonal fruit plus<br />
Non-sweetened yoghurt <strong>with</strong> acidophilus and bifidus and<br />
Non-sweetened, preferably homemade raw muesli <strong>with</strong> oats,<br />
seeds, nuts, fresh fruit or<br />
Cooked cereal (for example, porridge, brown rice, polenta);<br />
served <strong>with</strong> banana or stewed fruit, grated apple, yoghurt<br />
or<br />
Smoothie <strong>with</strong> soy, yoghurt, fruit, nuts or<br />
Poached or boiled egg and toast or<br />
Sardines, baked beans, ricotta, almond paste and toast (variety<br />
of grains) or<br />
Miso soup and brown rice<br />
LuncRIDinner<br />
Large salad <strong>with</strong> eggs, lentils, beans, tofu, fish, chicken, lean<br />
meat, cheese, hommos or<br />
Sandwich or pasta <strong>with</strong> some protein (for example, nut butter,<br />
tuna and salad)<br />
Rice cakes, ryvita, bread etc.<br />
Vegetable and bean soup plus rice or<br />
Stir-fry vegies and tofu, chicken, beef, fish<br />
Snacks<br />
Raw vegetable sticks and hommos, tahini, soft cheese or<br />
Dried fruit and raw nuts or<br />
Fruit and yoghurt or cheese (ricotta or cottage) or<br />
Rice biscuit, wholemeal bread or Vitaweat <strong>with</strong> hommos,<br />
ricotta, tuna, egg or<br />
Half a sandwich<br />
Btwerages<br />
Herb teas<br />
Dandelion coffee
204 The Commonsense Guide to <strong>Eating</strong> We//<br />
Green tea<br />
Tea or coffee in moderation<br />
Fresh fruit or vegetable juice<br />
Water<br />
Miso soup
Tailor-made<br />
Allergy<br />
It seems more and more people are coming down <strong>with</strong> food<br />
allergies. Either this condition is over-diagnosed or it is very<br />
common. It is probably a little of each.<br />
There are two main types of food allergy. One is known<br />
as a 'fixed' allergy, which is the drama queen of allergies.<br />
Shortly after ingestion of the culprit food, a violent immunemediated<br />
reaction occurs, such as an outbreak of hives, an<br />
asthma attack, swelling of the airways or anaphylaxis, which<br />
is a shutdown of the heart and lungs. Fixed allergies are not<br />
to be played around <strong>with</strong> - they can kill. Foods commonly<br />
associated <strong>with</strong> fixed allergies include strawberries, shellfish<br />
and the yellow food dye tartrazine (102). If you have a fixed<br />
allergy, you are usually stuck <strong>with</strong> it for life. Avoid that<br />
strawberry.<br />
The other kind of food allergy, known as 'systemic', is<br />
more subtle in its approach. Foods commonly associated <strong>with</strong><br />
systemic food allergy include eggs, milk, peanuts, wheat, soy,
206 The Commonsense Gzckde to Eatilag <strong>Well</strong><br />
tomatoes and yeast. The substance that causes the allergic<br />
reaction is called the 'allergen'.<br />
A food allergy may appear in a variety of guises, taking<br />
between one minute to several days before symptoms appear.<br />
Symptoms include mouth ulcers, chronic diarrhoea, flatulence,<br />
bladder infections such as cystitis, infections such as<br />
colds, ear infections, anxiety, depression, hyperactivity, inability<br />
to concentrate, insomnia, irritability, joint pain, asthma,<br />
bronchitis, wheezing, itchy nose or throat, sinusitis, acne,<br />
eczema, hives, itching, skin rashes, rapid heartbeat, water<br />
retention, bloating, fatigue, headaches, migraines and<br />
hypoglycaemia.<br />
Systemic allergies have appeared only recently on the<br />
scene, or they were not previously recognised as such.<br />
The following are a few theories as to why food allergies<br />
are more prevalent today.<br />
1 Fdarity breeds contempt<br />
The most common foods that cause food allergy are the<br />
most popular foods; that is, cow's milk, wheat, oranges<br />
and tomatoes. There are too many similarities for this<br />
state of affairs to be coincidence, but no-one is able to<br />
offer a solid explanation.<br />
2 Poor digestive function<br />
If food is improperly digested there is a greater chance<br />
of larger molecules crossing the intestinal wall into the<br />
bloodstream, thereby causing an allergic reaction.<br />
3 Allergy babies<br />
In industrialised countries such as our own, babies are<br />
usually weaned at six months if not earlier, when their
digestive tract is still allowing the passage of large molecules.<br />
The first foods we start them on include cow's<br />
milk, soy, orange juice and wheat, all major players in<br />
the food allergy stakes.<br />
4 Blame it on the genes<br />
A susceptib'ity to allergy can be inherited. This is especially<br />
so for fured allergies.<br />
5 The last straw<br />
In the normal course of events, our immune system is able<br />
to deal <strong>with</strong> a certain sensitivity to food allergens.<br />
However, when the immune system is under challenge,<br />
during times of stress, infections or not eating or sleeping<br />
well, the food sensitivity becomes the 'straw that breaks<br />
the camel's back' and a 'new' food allergy appears. This<br />
explains why people can suddenly become 'allergic' to a<br />
food to which they have never previously reacted.<br />
How do you recognlse a food allergy and what can<br />
you do about It?<br />
The 'gold standard' for diagnosing a food allergy is the<br />
method of food avoidance and challenge: by strictly removing<br />
the suspect food from your diet for two weeks there should<br />
be a noticeable reduction in symptoms. The suspect food<br />
should stand out like a sore thumb. Mostly, it will be a food<br />
that you eat every day, like wheat, oranges (orange juice) or<br />
milk (cheese and so on). (The challenge should never be<br />
taken by people <strong>with</strong> fixed allergies where the symptoms of<br />
an allergy may be life threatening.)<br />
Step 1: Avoid and challenge<br />
For two weeks, avoid the suspect food. Be strict. For
208 The Commonsense Gaide to <strong>Eating</strong> WeGG<br />
example, wheat would include the obvious bread, pasta and<br />
pastries, but also many processed foods which use flour such<br />
as soups, crumbed foods and so on. Look for allergy-based<br />
recipe books to help <strong>with</strong> planning meals.<br />
Keep a diary of your symptoms starting a week before you<br />
begin the allergy program, so that you can accurately compare<br />
before and after. Mention all physical and psychological<br />
symptoms, even if they don't appear to relate to the allergy.<br />
It is advisable to record other influences such as weather<br />
changes, emotional upsets, menstrual period. This diary will<br />
be invaluable in assessing the degree of allergy.<br />
When the two weeks are up it is time to take the 'challenge'.<br />
Eat a portion of the suspected allergy food three times<br />
in the one day. For example, if wheat is the suspected allergen,<br />
have toast and Weetbix for breakfast, a sandwich for<br />
lunch and pasta for dinner. Refrain from the food for two days<br />
after the challenge, as symptoms such as eczema may take<br />
that long to appear.<br />
Step 2: Abstinence<br />
Once you have ascertained that a particular food is a problem,<br />
continue fairly rigorous avoidance for a further three months.<br />
Try a few of the following suggestions to allow both the<br />
digestive and immune systems to recover.<br />
To improve digestive fgnction<br />
Take one teaspoon of herbal bitters in a wineglass of water,<br />
sipped before dinner; and take a digestive enzyme tablet <strong>with</strong><br />
each meal.<br />
Step 3: Easy does it<br />
After three months' strict avoidance, you may start to include<br />
the food back into your diet. But not all at once! Allow one<br />
serving of the allergy food every four days. This will reduce
Tailor-made 209<br />
any chance of an allergic reaction. After some experimentation,<br />
you may find that you can eat the 'allergic' food more<br />
frequently than once every four days. However, if symptoms<br />
return, back off. Each person has their own threshold, beyond<br />
which the old symptoms will appear. Note that if your<br />
immune system is compromised by an infection or stress it<br />
will be less able to cope, and so it is wise to reduce consumption<br />
of the allergy food as a precaution.<br />
I<br />
Testing<br />
No testing method, laboratory or other, is 100 per cent<br />
accurate in diagnosing a food allergy. These include the<br />
skin prick test (although helpful for atmospheric allergens<br />
such as dust mite and pollens), RAST (Radio<br />
Allergo Sorbent Test), cytotoxic (blood test), vega<br />
machine and listen machine (use acupuncture points)<br />
and kinesiology (muscle testing). However, they may be<br />
useful in confirming a reasonable suspicion.<br />
Menopause<br />
Menopause is the time when a woman's menstrual cycle<br />
ceases and quantities of the two female hormones, oestrogen<br />
and progesterone, dwindle. Rarely does it happen overnight,<br />
often taking from two to five years. When ovaries cease producing<br />
their hormones, the adrenal glands and fat cells may<br />
take over the role of hormone manufacture to a certain<br />
extent. Theoretically, this means a smooth transition from<br />
high to lower hormone levels, but unfortunately this does not<br />
always occur. The mixed bag of menopausal symptoms may
210 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
include hot flushes, depression, dry skin, less vaginal lubrication,<br />
osteoporosis, heavy bleeding, insomnia, depression<br />
and irritability.<br />
Hormone Replacement Therapy (HRT) involves taking<br />
synthetic hormones to prevent symptoms. Some women find<br />
HRT an answer to their prayers, some experience side<br />
effects, others prefer to enter this phase of their lives <strong>with</strong>out<br />
chemical interference. Many women pass through menopause<br />
symptom-free regardless.<br />
Diet<br />
Avoid sugar and caffeine. Limit your alcohol consumption to<br />
one or two glasses daily.<br />
Avoid hot spicy food and alcohol if you have hot flushes.<br />
Hot flushes may coincide <strong>with</strong> times when blood sugar levels<br />
are low; for example, half an hour before dinner. If this is the<br />
case, eat small meals frequently so that your sugar levels<br />
remain steady. Cool peppermint tea may help relieve hot<br />
flushes. Vitamin E at 1000 iu daily may also help.<br />
Eat four servings of fish a week for the omega3 fatty acids.<br />
Eat several foods containing phyto-oestrogens each day<br />
(see below).<br />
Phyto-oestrogens exert a very weak hormonal influence,<br />
much weaker than that of the real hormone produced by the<br />
ovaries. Throughout the body there are hormone receptors that<br />
work much like doorlocks, and hormones are the 'keys' that<br />
fit these locks. Phyto-oestrogens also fit these locks. Once the<br />
receptor sites are full <strong>with</strong> either phyto-oestrogens or oestrogens,<br />
any excess hormone is excreted. In this way, phytooestrogens<br />
help to normalise hormone levels. This is useful for<br />
menopause when there is too little hormone and some cancers<br />
where there is too much. Foods high in phyto-oestrogens<br />
include soy sprouts, alfalfa, green beans, split peas, olives, soybeans,<br />
tofu, soy drink, parsley, chickpeas, cherries, corn, oats,
Tailor-made 21 1<br />
barley, rye, wheat, rice, pomegranate, hops, sesame seeds,<br />
linseed, buckwheat, millet, sage, fennel, celery, carrots,<br />
cabbage, rhubarb and garlic.<br />
Other thf ngs<br />
If you suffer from vaginal dryness, insert a 500 iu vitamin<br />
E capsule into the vagina each night.<br />
Stop smoking. Smoking lowers oestrogen levels and<br />
women who smoke experience menopause on average five<br />
years earlier than women who don't.<br />
Stress can cause menopause to occur earlier and worsen<br />
existing symptoms. Look to ways of minimising stress. Buy<br />
a cat, lie in a bath, walk the dog, don't accept family<br />
invitations.<br />
Premenstrual syndrome<br />
One-third of all women suffer from premenstrual syndrome<br />
(PMS). PMS is a collection of about 150 symptoms. The most<br />
common are anger, anxiety, backache, bloating (particularly<br />
abdomen), breast tenderness, clumsiness, confusion, crying,<br />
fatigue, fluid retention, forgetfulness, headache, insomnia, leg<br />
cramps, moodiness, irritability, nausea, craving chocolate and<br />
carbohydrates, pimples, weight gain.<br />
PMS responds very well to natural remedies. Keep up the<br />
regimen for at least four menstrual cycles.<br />
Diet<br />
Vegetarian women suffer less from PMS than meat-eating<br />
women do, because more fibre is consumed in the diet.<br />
Soluble fibre is able to stop cholesterol and excess oestrogen<br />
from recirculating.<br />
Reduce red meat and dairy foods.
212 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
Eat fish four times a week to provide the omega-3 fatty<br />
acids, which will help ease the inflammatory symptoms of<br />
PMS.<br />
Cut out all sugar, salt and white flour products. A study<br />
revealed that women <strong>with</strong> PMS consumed 275 per cent<br />
more refined sugar and 62 per cent more white flour products<br />
than did women <strong>with</strong>out PMS. It also found that<br />
women <strong>with</strong> PMS consume 79 per cent more sodium.<br />
Caffeine will make all symptoms worse, especially anxiety<br />
and depression. You may drink a cup or two a day in the<br />
first two weeks of your cycle, but after day 15 don't even<br />
think about it. The same goes for chocolate and cola<br />
drinks. Caffeine affects hormones adversely, as well as<br />
being a major contributor to fluctuations in blood sugar<br />
levels. The xanthines in coffee and chocolate have an<br />
effect on oestrogen receptors in the breasts, contributing<br />
to breast tenderness and enlargement. Drink dandelion<br />
root coffee instead. Dandelion root is good for the liver,<br />
which metabolises excess hormones.<br />
If your PMS symptoms include cravings for sweet food,<br />
mood changes or forgetfulness, adopt the eating pattern<br />
suggested for hypoglycaemia on page 25, which basically<br />
entails eating small meals regularly.<br />
Eat only organically grown chooks and eggs as they are not<br />
pumped up <strong>with</strong> extra synthetic oestrogen.<br />
Other things<br />
There are several good 'women's formulation' multivitamin<br />
and mineral supplement tablets available specifically<br />
for PMS; they have higher amounts of B6, magnesium and<br />
zinc.<br />
Take extra magnesium and vitamin B6 a week before<br />
your period is due, particularly if you suffer from breast
Tailor-made 213<br />
tenderness, weight gain, fatigue, anxiety, cramping and<br />
nervous tension.<br />
Take vitamin E 300 to 600 iu daily throughout the month.<br />
Vitamin E will relieve breast tenderness.<br />
@ Evening primrose oil (EPO) is very successful in relieving<br />
many of the symptoms of PMS. It contains gamma linolenic<br />
acid (GLA), which is converted in the body into<br />
hormone-regulating prostaglandins. In order to be<br />
effective, GLA needs to be incorporated into every cell,<br />
which is why you need to take EPO for several months.<br />
Take 3 grams of EPO daily.<br />
Overweight<br />
With all the pressure society places on not being overweight,<br />
you would have to be a masochist to want to be fat. It is,<br />
therefore, unfair to blame people for eating too much, when<br />
it is obvious that eating too much is the cause of their overweightness.<br />
Hormonal problems do have a role in obesity, but<br />
only a very few people have entirely hormonal weight problems.<br />
Overeating is an addiction to food which should be<br />
given the same consideration as any other addiction. When<br />
we were babies and terribly vulnerable, a source of comfort<br />
and nourishment was mother's milk (or formula). When we<br />
were afraid or tired or angry and cried, we were given the<br />
breast or bottle. When we are upset or stressed, many of us<br />
still need to feel comforted, just as we did when a baby. Some<br />
people choose alcohol, some people choose cigarettes, others<br />
seek solace in chocolate.<br />
Is your mother overweight? Is your father overweight? Are<br />
your sisters and brothers overweight? Whether it is nature or<br />
nurture, a higher proportion of overweight: people have overweight<br />
families. Another reason for overweight is one diet too
214 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
many. The truth will out! People who have been on many<br />
diets, particularly low calorie ones, tend to be more overweight<br />
than those who have never dieted. We now know that<br />
dieting interferes <strong>with</strong> metabolism, which slows down as we<br />
reduce the amount we eat, creating a vicious cycle. The metabolic<br />
rate is the rate at which energy is used and released<br />
by the cells. A higher metabolic rate means that more energy<br />
is used and more body fat is burned for energy. A low or<br />
sluggish metabolism means that cells are more thrifty in their<br />
use of energy and calories.<br />
Diet<br />
Before you do a thing, write a complete diet diary for one<br />
week. Don't change a thing and don't judge. Take this diary<br />
to a dietician, to sort out any problem areas; for instance,<br />
missing breakfast, a cafe latte too many, too much hidden fat.<br />
Along <strong>with</strong> all food and drink, keep a written record of your<br />
emotions. Sometimes we don't realise we are eating because<br />
of something emotional, such as boredom, fear, or rage.<br />
Fat, protein, carbohydrate and alcohol contain calories. If<br />
we consume more than our bodies need, we can store the<br />
rest as fat (except for protein, which is not stored, but<br />
should not be eaten in excess of needs; that is, 1 gram per<br />
body kilogram daily). Recent research has shown that<br />
excess fat is more likely to be stored as fat than excess<br />
carbohydrate is. In practice, choose a baked spud over a<br />
chip. To become more savvy <strong>with</strong> what's fat and what's<br />
not, buy a nutritional counter showing the fat content of<br />
food. Alcohol is also stored as fat, avoid it.<br />
Eat small meals often, according to the hypoglycaemia diet<br />
on page 25. That is, a little protein <strong>with</strong> carbohydrate every<br />
two to three hours, so that you don't have a chance to get<br />
hungry. <strong>Eating</strong> frequently will increase your metabolic rate.<br />
No more than 25 per cent of your total calories should
Tailor-made 215<br />
come from fat. If your dietary requirements were 1200 to<br />
1500 calories a day (a reasonable amount for most people),<br />
your fat intake should not exceed 33 to 42 grams of fat a<br />
day.<br />
Eat smaller portions of food but don't starve yourself, even<br />
missing breakfast causes a drop in your metabolic rate.<br />
Your diet should resemble the suggested format on page 203.<br />
Focus on low fat, high fibre and protein-rich foods.<br />
Other things<br />
Exercise is an absolute must in any weight loss program.<br />
Make it a priority to exercise for 40 minutes, five times a<br />
week. The best kind of exercise will have you puffing, such<br />
as hill walking, cycling, jogging or gym work. Don't be<br />
alarmed if you put on some weight. But you should lose<br />
centimetres. Muscle tissue weighs more than fat but uses<br />
more energy.<br />
Skin<br />
Beauty may be more than skin-deep but having beautiful<br />
skin never hurt anyone. Skin is our largest organ and reflects<br />
our state of health and mind. Skin is often the first indicator<br />
that things are going awry. Many people find that their skin<br />
reacts when they are under stress, whether it is an outbreak<br />
of eczema, acne or just looking tired and lacklustre.<br />
The following recommendations are not specific to any<br />
particular skin problem but will invariably go a long way to<br />
helping any skin disease including excema, acne and psoriasis.<br />
These recommendations will help to transform your skin<br />
to peak condition.<br />
Drink water like there is no tomorrow; pure water,
216 TAe Commonsetsse Guide to <strong>Eating</strong> <strong>Well</strong><br />
anywhere between 2 to 3 litres. Yes, your bladder will complain<br />
but will eventually calm down after realising you are<br />
serious. Unless your skin is fully hydrated, there is no<br />
chance of looking good.<br />
In addition to the water, drink one carrot juice daily (for<br />
the beta-carotene), as well as two to three herbal teas.<br />
Choose from red clover, burdock, nettle or a combination.<br />
These are traditional herbal 'blood purifiers' that work at<br />
cleaning the body from the inside out.<br />
Avoid tea, coffee, chocolate, cheese and sugar.<br />
Avoid deep-fried foods, although some kinds of fat are<br />
good and will bring sleekness to your skin. Eat fish<br />
(contains the omega3 fatty acids. Have you ever seen a<br />
seal <strong>with</strong> bad skin?). Other foods <strong>with</strong> 'good' fats include<br />
avocados, seeds, tahini and nuts.<br />
Evening primrose is beautiful for skin, particularly if your<br />
skin is affected by hormones or eczema. Take 3 grams<br />
daily.<br />
Vitamin A and zinc are excellent for all skin problems.<br />
Take a tablet of each daily.<br />
B-complex is a must, particularly if stress is a trigger.<br />
Exercise regularly, washing off sweat as soon as possible.<br />
Drink plenty of water before, during and after exercise to<br />
avoid your skin dehydrating. In addition, you might like to<br />
combine a few drops of rosewater in pure water and spray<br />
over the face and neck after exercise.<br />
Creative visualisation, a type of meditation, may improve<br />
your skin. Each day, for a few minutes, visualise your skin<br />
as clear and blemish-free; think of swimming in a cool lake<br />
under moonlight.<br />
Use an oat sock (see page 106) or sorbolene instead of soap.<br />
Massage olive or jojoba oil all over the body before you<br />
shower or bath. The warm water will help your skin to<br />
absorb the oil.
Tailor-made 21 7<br />
Stress<br />
Stress is a major cause of illness - a fact that most of us<br />
intuitively know. The science that has gone about proving<br />
our hunch is called psychoneuroimmunology and it acknowledges<br />
the connection between the mind (psych), nervous<br />
and hormonal systems (neuro) and the immune system<br />
(immunology). Described succinctly by Deepak Chopra,<br />
modern guru of the mindlbody connection: 'The mind and<br />
body are like parallel universes. Anything that happens in the<br />
mental universe must leave tracks in the physical one.'<br />
Lifestyle changes take precedence in dealing <strong>with</strong> stress,<br />
although dietary changes and supplements can mitigate its ill<br />
effects. Most people who are stressed feel pressed for time,<br />
unable to fit another thing into their hectic schedule. This is<br />
the most telling sign that time-out is precisely what is<br />
needed. Time-out to exercise and meditate - about 20<br />
minutes of each and every day. If you change your day to<br />
ensure these two things take priority over business or social<br />
demands, you will be healthier and happier. I can't vouch for<br />
wealthier!<br />
Diet<br />
If you are stressed, now is not the time for radical dietary<br />
changes. Ease into it slowly. Maybe exit the coffee first and<br />
in a couple of weeks try another change.<br />
Never miss a meal. When blood sugar levels are low, the<br />
symptoms of stress increase. Eat small meals regularly,<br />
every three to four hours. Each meal should contain a small<br />
portion of protein; for example, egg, cheese, nuts, beans,<br />
fish.<br />
Give sugar a miss. This includes the 3 pm chocolate hit.<br />
You will no doubt love that hit of sugar that stops you<br />
feeling so tired, but your body doesn't. The extreme highs
218 The Commonsense Guide to <strong>Eating</strong> WeZZ<br />
and lows of blood sugar levels leave you more depleted.<br />
<strong>Eating</strong> sweet foods when stressed is like cruelty to a dumb<br />
animal. You.<br />
Brown rice, oats, root vegetables (such as carrots and parsnips)<br />
and legumes (such as kidney beans and lentils) are<br />
grounding and very nurturing for the stressed nervous<br />
sys tem.<br />
There is room for 'comfort' food in the anti-stress diet,<br />
particularly in times of high stress. These may be foods of<br />
your childhood, such as a roast dinner, porridge, rice<br />
pudding, moussaka.<br />
Caffeine is O.U.T. If you find a cup of coffee relaxing, it<br />
is probably because you are addicted to the stuff. Kick the<br />
habit. Caffeine increases the release of adrenalin the stress<br />
hormone, something that is working overtime anyway.<br />
Avoid coffee and caffeine-containing things, such as cola<br />
drinks and guarana. Be prepared for whopping caffeine<br />
<strong>with</strong>drawal headaches 18 hours after your last cup of coffee.<br />
Swear at me if you wish, it will take up to 48 hours. Once<br />
released from caffeine's grip, take your comfort from a<br />
range of herbal teas (see page 90) or one or two cups of<br />
tea. While tea contains caffeine, it is not absorbed to the<br />
same extent.<br />
Although it is tempting to drown your troubles, alcohol is<br />
counterproductive. It is a nervous system depressant. After<br />
the initial euphoria, alcohol can leave you feeling more<br />
stressed.<br />
A B-complex vitamin is important at this time. Take one<br />
each morning.<br />
Take at least 1 gram of vitamin C daily; the adrenal glands<br />
chew up vitamin C during stress.<br />
Potassium is good for nerves and magnesium is good for<br />
tense muscles - you probably need both by the truckload.<br />
Stress-relieving herbs support the adrenal glands, the
nervous and immune systems. These include passionflower,<br />
scullcap, valerian, licorice, St John's wort, panax and<br />
Siberian ginseng, lemon balm, kava and chamomile.<br />
<strong>Health</strong>y heart<br />
Heart disease commonly manifests as atherosclerosis, <strong>with</strong><br />
the main symptoms being high blood pressure and high cholesterol.<br />
Heart disease is a big killer in Australia and other<br />
industrialised countries. Of course there are hereditary considerations,<br />
but there is no denying that diet and lifestyle play<br />
a huge part in heart disease.<br />
Don't just think about it, you mast start managing your<br />
stress. Do something for it every day - walking, tapestry,<br />
singing, meditation, rock climbing, yoga, dancing, counselling.<br />
Regular aerobic exercise decreases LDL levels and most<br />
atherosclerosis risk factors. Being overweight is a risk factor.<br />
Lose it. And stop smoking if you possibly can.<br />
Diet<br />
Be firm in restricting fats. A low-fat diet is recommended,<br />
where less than 25 per cent of total calories come from fat.<br />
Avoid fried and processed foods that often contain hidden<br />
oils. Although cholesterol in food is a factor, it is more<br />
important to limit the fats, particularly the saturated fats in<br />
the diet; for example butter, cream, ice-cream, full cream<br />
milk, lard, beef, lamb, bacon, organ meats, eggs, pork, delimeats<br />
and yellow cheese.<br />
Taking a leaf from the French who seem to have beaten<br />
the heart-disease odds (see French Paradox, page 173), you<br />
may indulge in olive oil, cold-pressed vegetable oils and<br />
fish. Eat fish particularly, as it is full of the protective
220 The Commonsense Guide to <strong>Eating</strong> <strong>Well</strong><br />
omega3 fatty acids. Eat four servings of the critters each<br />
week: canned or fresh but definitely not fried.<br />
For many years, salt was classified as a baddy because it<br />
was thought to increase blood pressure. Now, the jury is<br />
out. It seems that some of us are 'salt sensitive', while<br />
others may soak in brine and not be affected. Nevertheless,<br />
don't be heavy handed <strong>with</strong> the saltcellar.<br />
The following foods do not contain cholesterol but are able<br />
to increase our blood levels of this risk factor: coffee,<br />
alcohol (over two glasses daily), sugar and hydrogenated<br />
fats such as margarine.<br />
Soluble fibre (see page 29) reduces cholesterol by preventing<br />
it from being absorbed or reabsorbed. The soluble<br />
fibre 'chelates', or holds on to, the cholesterol and eliminates<br />
it via the bowel. Good choices include oat bran, rice<br />
bran, barley bran, vegetables, fruit, legumes, pectin and<br />
psyllium.<br />
Foods <strong>with</strong> cholesterol-lowering effects on the body<br />
include artichokes, ginger, cucumber, seaweed, banana,<br />
quince, onion, garlic, ginger, pineapple, oatmeal, legumes,<br />
grapefruit, oranges, apples, yoghurt, carrots, barley, eggplant<br />
and shiitake mushrooms.<br />
The liver is able to make bile from cholesterol. Be kind to<br />
your liver: drink the juice of half a lemon in hot water each<br />
morning before breakfast and/or sip a teaspoon of herbal<br />
bitters in a glass of water before dinner each night.<br />
The antioxidants are big news in the treatment of heart<br />
disease, particularly in preventing and reversing the<br />
damage to arteries from atherosclerosis. Take one vitamin<br />
and herbal antioxidant (containing grapeseed) tablet daily.<br />
In addition to eating fish, take evening primrose oil, 3<br />
grams daily.<br />
Lecithin regulates cholesterol levels. Take one teaspoon or<br />
four capsules daily.
Glossary<br />
Amylase An enzyme present in saliva and pancreatic juice,<br />
which is responsible for breaking down carbohydrates into<br />
smaller units.<br />
Antioxidants A substance that protects against damage<br />
from free radicals. The body makes its own antioxidants,<br />
such as catalase and superoxide dismutase. Various nutrients<br />
also act as antioxidants including vitamin A, beta-carotene,<br />
vitamins C and E, selenium, zinc and bioflavonoids.<br />
Carcinogen A general term for an agent that can cause<br />
cancer. Examples include cigarette tar; ultraviolet radiation<br />
(sunlight); fats that have become oxidised (rancid); the<br />
nitrates used for colouring and preserving meats such as<br />
salami; and the pesticides and fungicides used on our agricultural<br />
produce.<br />
Chelate The word chelate is derived from the Greek word<br />
for claw. A chelating agent grabs on to another substance.<br />
This can be used to either take substances out of the body<br />
or to enhance their absorption, depending on the particular<br />
chelating agent.<br />
Cytoplasm The jelly-like substance that surrounds the<br />
nucleus in the cell.<br />
Diuretic A substance that increases the volume of urine, by<br />
increasing the amount of salts and water exreted via the<br />
kidneys.
222 The Commonsense Guide to Eatilag <strong>Well</strong><br />
Dysbiosis A state of bowel microflora disharmony.<br />
Alcohol dehydrogenase The enzyme necessary for converting<br />
alcohol, mainly found in the liver. Alcohol dehydrogenase<br />
requires the mineral zinc to function.<br />
Emulsify To make an emulsion. An emulsion is a liquid<br />
mixture where an oily substance is combined <strong>with</strong> water<br />
substance and the two don't separate. Lecithin is an<br />
exmple of an emulsifier as it is both fat- and water-soluble.<br />
Enzyme An enzyme is a protein that, in small amounts,<br />
speeds up the rate of a biological reaction <strong>with</strong>out being<br />
used up in that reaction. Enzymes are used extensively<br />
in the body for all manner of things. Enzymes often<br />
require coenzymes, such as magnesium and zinc, in order<br />
to work efficiently. Heat and pH may also slow or speed<br />
enzyme activity. Enzyme names often end in 'ase'; for<br />
example, lactase and alcohol dehydrogenase. The digestive<br />
enzymes are predominantly used to break down<br />
bigger food fragments into smaller fragments. For<br />
instance, carbohydrate-splitting enzymes (amylase) are<br />
able to split a complex carbohydrate into one and two<br />
sugar units.<br />
Free radical A free radical is defined as any molecule that<br />
has an unpaired electron in its outer orbit. Molecules like<br />
their electrons paired, so this situation is disturbing. The<br />
free radical molecule <strong>with</strong> the unpaired electron is unbalanced<br />
and therefore highly reactionary. In non-technical<br />
language, they are troublemakers! Although they are tiny,<br />
free radicals can wreak havoc to our cells. Free radicals<br />
cause harm in two distinct ways. First, to the cell<br />
membrane. The damage means that nutrients and oxygen<br />
cannot enter the cell from the bloodstream and, conversely,<br />
waste products are unable to leave the cell. This effectively<br />
means a cell's death. Second, free radicals may also<br />
enter the cell and disturb the FWA and DNA, our cell's
Glossary 223<br />
genetic material. Mutations will occur when the cell next<br />
divides if free radicals have changed the genetic code.<br />
There is some evidence to suspect this could explain the<br />
mechanism by which some cancers are caused.<br />
Glucose Tolerance Factor (GTF) A molecule made up<br />
of 2-nicotinic acid, cysteine, glycine, glutamine and chromium.<br />
Is a cofactor for insulin, facilitating entry of glucose<br />
across cell membrane.<br />
Glycolysis A ten-step conversion of glucose to pyruvic acid<br />
to lactic acid. Glycolysis takes place in the cytoplasm of<br />
cells and involves the production of a small amount of<br />
energy that is used for the workings of the cell.<br />
Goitre Swelling of the neck due to an enlargement of the<br />
thyroid gland. The goitre could be due to under- or overfunctioning<br />
or simply an overgrowth or tumour of the<br />
thyroid gland.<br />
Haemoglobin An iron-containing substance <strong>with</strong>in red<br />
blood cells, capable of carrying oxygen.<br />
Haemosiderin A storage form of iron found particularly in<br />
the liver.<br />
Half life The time it takes to reduce the level in the body<br />
(of a particular substance - for example, caffeine) to half<br />
its initial value.<br />
Hypothalamus The part of the brain that controls various<br />
bodily functions including thirst, temperature, water<br />
balance, hunger and so on.<br />
Insulin A hormone secreted by the pancreas that is important<br />
for regulating the amount of glucose in the blood.<br />
Interstitial fluid The fluid between cells.<br />
Intrinsic Factor (IF) A protein substance secreted in the<br />
stomach. It is necessary for the absorption of vitamin B12.<br />
A failure of secretion of Intrinsic Factor leads to pernicious<br />
anaemia.<br />
Isoflavones Plant substances found in legumes - for
224 The Commonsense Gzlide to <strong>Eating</strong> <strong>Well</strong><br />
example, genistin in soy - which are structurally similar to<br />
oestrogen, and are able to bind on to oestrogen receptors.<br />
Lipoprotein A protein-coated vehicle that transports fatty<br />
substances including cholesterol, triglycerides, phospholipids,<br />
hormones and fat-soluble vitamins around in the<br />
bloodstream. Sometimes called LPs (I've always wondered<br />
what happened to vinyl records).<br />
Miso A fermented soy paste made by inoculating trays of<br />
rice <strong>with</strong> the mould AspeqZas oqzae. A ground preparation<br />
of cooked soybeans and salt is then mixed in and the mass<br />
is allowed to ferment for several days before being ground<br />
into a paste that has the consistency of peanut butter. The<br />
entire miso process takes 10 to 40 days. Miso is used as a<br />
flavouring for soups and on vegetables. It is a source of<br />
B12 as well as bowel friendly bacteria.<br />
Oligosaccharide Undigestible starch found in seeds and<br />
beans.<br />
Peristalsis A wavelike movement that progresses along<br />
some of the hollow tubes of the body, particularly the<br />
bowel.<br />
Phytates Not a fire, although often in cereals and legumes.<br />
Phytates or phytic acid can reduce the absorption of certain<br />
minerals including iron, zinc and calcium. Phytic acid is<br />
the calcium or magnesium salt of inositol and phosphoric<br />
acid. Phytates are destroyed by heat and phytase. Phytase<br />
is an enzyme present in grains and also in kidneys.<br />
Pica <strong>Eating</strong> non-nutritious substances such as stones, chalk,<br />
dirt or ice. May be due to a deficiency of minerals, particularly<br />
iron.<br />
Portal circulation Venous blood flow from the intestines<br />
(spleen, stomach) to the liver.<br />
Probiotics Beneficial microflora in the bowel; for example,<br />
LactobacilIzls acidophilas.<br />
Smooth muscle (or involuntary muscle) Occurs in
Glossary 225<br />
hollow organs such as the bowel, blood vesels, gall bladder<br />
and uterus.<br />
Solvent A liquid that can hold dissolved substances.<br />
Superoxide dismutase An antioxidant enzyme in the<br />
body. Can contain copper, manganese or zinc.<br />
Triglyceride A fat consisting of three fatty acid molecules<br />
combined <strong>with</strong> one glycerol molecule. Triglycerides are<br />
the most common type of fat found in the body and in<br />
food.<br />
Unsaturated fatty acid A fatty acid (chain or carbons)<br />
where there is one or more double bonds.
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