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Appetite, 1997, 29, 11–24<br />

Meal Pattern and Nutrient Intake Among Adult Finns<br />

EVA ROOS and RITVA PRÄTTÄLÄ<br />

National Public Health Institute, Finland<br />

The purpose of this study was to investigate the relationship between meal pattern<br />

and diet. Nutrient contents of meals, snacks and other eating occasions were<br />

compared and differences in dietary intake analysed between respondents following<br />

a conventional meal pattern and others. A random sample of 1861 adults aged<br />

25–64 from four regions of Finland completed a mailed questionnaire and 3-day<br />

food record in the spring of 1992. A conventional meal pattern was defined on<br />

the basis of national dietary guidelines as including breakfast, warm lunch and<br />

warm dinner, and subjects were identified with the help of the questionnaire.<br />

Meals and snacks were defined according to the respondents subjective criteria.<br />

Forty-four percent of all respondents followed the conventional meal pattern.<br />

Meal pattern has no effect on nutrient intake in men and small effects in women.<br />

Women following the conventional meal pattern had higher energy and cholesterol<br />

intake and lower alcohol and vitamin C intake than other women. Meals<br />

contributed to energy, protein and fat intake, and snacks to sugar and alcohol.<br />

Meal pattern had only a small effect on diet and conventional meal pattern<br />

cannot be considered healthier than other meal patterns.<br />

© 1997 Academic Press Limited<br />

INTRODUCTION<br />

During this century the number of daily cooked meals has declined in Finland<br />

and other western countries. The main social factors promoting the meal pattern<br />

change have been urbanisation, industrialisation and the convenience provided by<br />

food processing (Rotenberg, 1981; Mintz, 1985; Prättälä & Helminen, 1990; Mennel,<br />

Murcott & van Otterloo, 1992; Prättälä, Pelto, Pelto, Ahola & Räsänen, 1993).<br />

There have been concerns expressed by the scientific community as well as the<br />

mass media about the rising consumption of snacks at the expense of “proper meals”.<br />

In public health studies skipping breakfast and eating snacks between meals have<br />

been classified as ‘‘bad’’ health habits (e.g. Belloc & Breslow, 1972; Segovia, Bartlett<br />

and Edwards, 1989; Sobal, Revicki & DeForge, 1992). Concern about the declining<br />

role of meals can even be seen in dietary recommendations. For example, the Swedish<br />

recommendations include a meal pattern (Standing Nordic Committee on Food,<br />

We are grateful to Dr Pirjo Pietinen, Head of the 1992 Dietary survey of Finnish Adults, M.Sc. Päivi<br />

Kleemola for checking the food records and analysing the dietary data and M.Sc. Jukka Lauronen for<br />

technical help.<br />

This work was supported by research grants from the Academy of Finland and the University of<br />

Helsinki.<br />

Correspondence should be addressed to: Eva Roos, National Public Health Institute, Department<br />

of Nutrition, Mannerheimintie 166, FIN-00300 Helsinki, Finland.<br />

0195–6663/97/040011+14 $25.00/0/ap960095 © 1997 Academic Press Limited


12 EVA ROOS AND RITVA PRÄTTÄLÄ<br />

1989): breakfast should provide you 1/4 of the daily energy intake, lunch and<br />

dinner both about 1/3, and the remainder should come from 1–2 snacks. Such<br />

recommendations are not based on scientific evidence, but on practical experience<br />

and the assumption that a regular pattern of warm meals guarantees a varied diet<br />

(Bruce, 1987; 1991; Standing Nordic Committee on Food, 1989). Although nutritional<br />

scientists have been worried about snacking patterns, especially among children and<br />

teenagers (Thomas & Call, 1973; Gillespie, 1983; McCoy et al., 1986; Dugdale,<br />

Townsend & Rigsby, 1988; Anderson, Macintyre and West, 1993; Cross, Babicz &<br />

Cushman, 1994) and obese (Birckbeck, 1981; Basdevant, Craplet and Guy-Grand,<br />

1993), meal patterns have received little attention in studies.<br />

A complication in meal pattern studies is that definitions of meals and snacks<br />

are not universal. In medical research, meals have been defined as any eating occasion<br />

(e.g. Franceschi, La Vecchia, Bidoli, Negri & Talamini, 1992; Fabry & Tepperman,<br />

1970) while in sociological studies a meal is regarded as a social event (see Mäkelä,<br />

1991, for review). In nutritional studies meals are usually defined by time, e.g.<br />

breakfast, lunch and dinner, and snacks as eating occasions between these meals<br />

(Pao & Mickle, 1981; Kennedy, Harrell & Frazao, 1982; Haraldsdottir, Holm, Jensen<br />

& Møller, 1987; Morgan, Johnson & Stampley, 1988; Virtanen, 1988; Ryan, Craig<br />

& Finns, 1992; Anderson et al., 1993; Prätälä et al., 1993; Roos, Quandt & DeWalt,<br />

1993; Summerbell, Moody, Shanks, Stock & Geissler, 1995). Time-based meal<br />

definitions can also be found in dietary recommendations (Standing Nordic Committee<br />

on Food, 1989). In some nutritional studies, however, meal definitions are<br />

based on the food and nutrient composition of eating occasions (Johansson, Callmer<br />

& Gustafsson, 1992; Lennernäs, Åkerstedt, Hagman, Bruce & Hambraeus, 1993;<br />

Rothenberg, Bosaeus, Steen, 1994).<br />

Because food is eaten as meals and snacks, not as single food items or nutrients,<br />

investigations of meal patterns have relevance for nutritional educators and food<br />

policy planners, as well as for multidisciplinary food research (Prättälä, 1991;<br />

Johansson et al., 1992; Holm, 1993). Since meals have social as well as nutritional<br />

significance, research on meals, by focusing on overlapping issues in the two fields,<br />

could narrow the gap between the social and nutritional sciences. In addition, dietary<br />

assessment methods could be improved by incorporating evaluations of meal patterns<br />

(Kohlmeier, 1994).<br />

The main question in the present study was: is a conventional meal pattern of<br />

breakfast, lunch and dinner healthier than other meal patterns including fewer meals?<br />

Nutrient contents of meals, snacks and other eating occasions of the study participants<br />

were compared, and the differences in dietary intake between those following a<br />

conventional three-meal daily pattern and those eating fewer meals were analysed.<br />

SUBJECTS AND METHODS<br />

Subjects<br />

The subjects and their recruitment have been described earlier (Kleemola, Virtanen<br />

& Pietinen, 1994; Roos, Ovaskainen & Pietinen, 1995a). Briefly, 1861 adults (991<br />

women and 870 men) who participated in a dietary survey in spring 1992 and had<br />

completed a 3-day food record were included in this study. The subjects were aged<br />

25–64 years and from four different regions of Finland; North Karelia (rural),


MEAL PATTERN AND <strong>NUTRIENT</strong> <strong>INTAKE</strong> AMONG ADULT FINNS<br />

13<br />

Kuopio (urban+rural), Turku-Loimaa (urban+rural) and Helsinki-Vantaa (urban).<br />

The original random sample was stratified by 10-year age groups, regions and sex.<br />

The response rate was 66% of the 2822 people contacted. Younger people, men and<br />

those who from the metropolitan area of Helsinki-Vantaa had lower response rates<br />

than others.<br />

Because our definition of a conventional meal pattern was time-based, we excluded<br />

160 shift workers (men 60, women 100) from the meal pattern analyses. We also<br />

excluded 12 subjects for missing values in the meal pattern question. Altogether,<br />

1689 subjects (801 men and 888 women) were used in the analyses of meal patterns.<br />

Questionnaire and 3-day Food Record<br />

All participants completed a mailed questionnaire before their study visit to a<br />

local health centre, where all answers were checked. In addition to several questions<br />

on socioeconomic status, health, smoking, alcohol intake and food habits (not<br />

reported here), the questionnaire included one question on meal pattern.<br />

During their examination on a weekday at the health centre, the participants<br />

were also asked to keep records of all the foods and beverages they consumed over<br />

the following three days. They were personally instructed on how to keep a food<br />

record starting the following morning. All days of the week were included in the<br />

results, with weekend days slightly over-represented. Amounts of food were estimated<br />

using a 63-page picture booklet or household measures. The record was open-ended<br />

and the subjects were asked to note the time, place (pre-coded) and company (precoded)<br />

of every eating occasion, and also to define each one as either a meal or a<br />

snack.<br />

Meal Patterns, Meals and Snacks<br />

The conventional meal pattern was defined by criteria outside this study. The<br />

definition was based on national dietary guidelines and recommendations for special<br />

population groups such as children, the elderly, sportsmen, and for hospital catering<br />

(National Board of Health, 1989; 1990; Ministry of Social Affairs and Health, 1992;<br />

1994). All these guidelines assume a meal pattern of 3 meals and 2–3 snacks during<br />

the day. A warm lunch and dinner are not recommended in every case, but a warm<br />

meal is considered more nutritious than a cold one. In our study the conventional<br />

meal pattern meant 3 meals during the day: breakfast, warm lunch, and warm dinner.<br />

The other meal pattern types were ‘‘2 meals per day’’ or ‘‘one meal or less per day’’.<br />

Subjects who had a conventional meal pattern were identified with the help of<br />

the mailed questionnaire. The question on meal pattern included in the questionnaire<br />

was structured into six time-based options: breakfast, snack in the morning, lunch,<br />

snack in the afternoon, dinner, and snack in the evening. For every eating occasion<br />

the subjects could choose between three pre-coded alternatives: 1. Do not eat, 2.<br />

Eat warm prepared food (including porridge) or 3. Eat something else—what? This<br />

question identified those who usually ate breakfast, warm lunch and warm dinner.<br />

Lunch and dinner was considered as a meal if the food eaten was warm. They<br />

were not defined by the type of food eaten at the eating occasion. This definition<br />

was used because of the structure of the meal pattern question. Breakfast was<br />

considered as a meal if 1. it was warm (e.g. porridge) or 2. the subject had something<br />

to eat (not just liquids) before 10 o’clock in the morning according to his/her food


14 EVA ROOS AND RITVA PRÄTTÄLÄ<br />

1200<br />

1000<br />

800<br />

Kjoule/hour<br />

600<br />

400<br />

200<br />

0<br />

0 2 4 6 8 10 12 14 16 18 20 22 24<br />

Time<br />

FIGURE 1.<br />

Distribution of energy intake during the day. Ε, men; Φ, women.<br />

record. Ten o’clock was chosen as the cut off point because it lay between the two<br />

energy peaks in the morning (Fig. 1). If the subject did not record breakfast against<br />

the meal pattern question, breakfast was not considered as a meal even if his/her<br />

food record indicated something eaten before 10 o’clock.<br />

Contrary to the definition of the conventional meal pattern, meals and snacks<br />

were defined according to the respondents subjective criteria. When keeping the food<br />

record the subjects were instructed to classify every eating occasion as either a meal<br />

or a snack. The respondents, however, were not able to classify all eating occasions,<br />

and the uncoded ones were called ‘‘other eating occasions’’ for the analyses.<br />

Dietary Analyses<br />

Daily intakes of nutrients and foods were computed from the 3 day food records<br />

using software developed at the National Public Health Institute and its food and<br />

nutrient data base (Ovaskainen, Lauronen & Haapakoski, 1994). The daily intakes<br />

of nutrients and food items were computed separately for meals, snacks and other<br />

eating occasions. Energy intake from different nutrients on an hourly basis through<br />

the day were also derived from the food records.<br />

Macronutrients, cholesterol, fibre, vitamin C, and carotenoids were analyzed as<br />

separate dietary items in order to form a general view of the quality of the diet.<br />

Cholesterol indicates the extent of animal sources, while fibre, vitamin C and<br />

carotenoids are good indicators of the consumption of vegetables, fruits and foods<br />

with high densities of other micronutrients. The macronutrient density of each type<br />

of eating occasion and the overall diet was measured as percentage of energy (E%);<br />

micronutrient and food item densities were measured as intake per 10 MJ.<br />

The food item classification used in this study was developed at the National<br />

Public Health Institute (Ovaskainen, 1992). The recorded items and dishes were


MEAL PATTERN AND <strong>NUTRIENT</strong> <strong>INTAKE</strong> AMONG ADULT FINNS<br />

15<br />

TABLE 1<br />

Percentage of men and women following different types of meal pattern according to<br />

age and region<br />

Three meals Two meals One meal per Total (N)<br />

per day per day day or less<br />

Men<br />

Age<br />

25–34 47 41 12 100 (167)<br />

35–44 49 44 7 100 (175)<br />

45–54 44 48 8 100 (208)<br />

55–64 46 50 4 100 (251)<br />

Region<br />

Helsinki-Vantaa (urban) 37 55 8 100 (186)<br />

Turku-Loimaa (urban+rural) 39 50 11 100 (213)<br />

Kuopio (urban+rural) 57 40 3 100 (212)<br />

North Karelia (rural) 52 42 6 100 (190)<br />

Men all 47 (371) 46 (372) 7 (58) 100 (801)<br />

Women<br />

Age<br />

25–34 41 51 8 100 (204)<br />

35–44 44 48 8 100 (213)<br />

45–54 39 56 5 100 (215)<br />

55–64 46 49 5 100 (256)<br />

Region<br />

Helsinki-Vantaa (urban) 29 59 12 100 (199)<br />

Turku-Loimaa (urban+rural) 35 55 10 100 (214)<br />

Kuopio (urban+rural) 51 47 2 100 (243)<br />

North Karelia (rural) 52 45 3 100 (232)<br />

Women all 42 (377) 51 (452) 7 (59) 100 (888)<br />

Total 44 (748) 49 (824) 7 (117) 100 (1689)<br />

grouped by their food use, processing and nutrient content into the food item groups<br />

presented in Table 5.<br />

Statistical Analyses<br />

The SAS statistical package (Release 6.08) was used for all analyses, which were<br />

carried out separately for men and women. All differences between eating occasions<br />

or meal pattern groups were tested by analysis of variance. The analyses of eating<br />

patterns were carried out in two different ways: firstly, intake and density of nutrients<br />

and food items were compared between meals and snacks; secondly, the daily intakes<br />

of nutrients and food items were compared between the groups following the<br />

conventional meal pattern or the other meal pattern. Because meal patterns were<br />

not equally distributed across the regions (Table 1) and because of the study design<br />

(sample stratified for age and region), all analyses where statistical significance was<br />

tested were adjusted for age and region.


16 EVA ROOS AND RITVA PRÄTTÄLÄ<br />

600<br />

Energy derived from fat kjoule/hour<br />

500<br />

400<br />

300<br />

200<br />

100<br />

0<br />

0 2 4 6 8 10 12 14 16 18 20 22 24<br />

Time<br />

FIGURE 2. Distribution of energy intake derived from fat during the day. Ε, men; Φ,<br />

women.<br />

RESULTS<br />

The distribution of energy intake during the day corresponded to the conventional<br />

3-meal pattern of one energy peak at breakfast time, one at lunch time and one at<br />

dinner time, for both men and women (Fig. 1). For the energy derived from fat,<br />

two peaks could be observed, one at lunch and one at dinner time, but a peak at<br />

breakfast time could only be observed for women (Fig. 2). The energy intake derived<br />

from sugar was evenly distributed from 6 a.m. to 9 p.m. (Fig. 3).<br />

About half the daily energy was obtained from meals (Table 2) and over 10% of<br />

the total daily energy intake came from eating occasions other than meals or snacks.<br />

Fat and protein intakes were associated with meals, whereas sugar and alcohol were<br />

mostly consumed in snacks and other eating occasions. Comparing nutrient densities<br />

of different eating occasions showed that meals contained more fat, proteins, fibre,<br />

carotenoids and cholesterol per energy unit, but less sugar, vitamin C and alcohol<br />

than other eating occasions (Table 3).<br />

The analysis of food items in different eating occasions showed that meals had<br />

a higher density of cereals and vegetables, and a lower density of fruit and berries,<br />

juices, coffee and tea, and desserts and cakes. As expected, meals had the highest<br />

density of cooked dishes, potatoes, pasta and rice, and snacks the lowest. Other<br />

eating occasions were intermediate in these respects and they included the highest<br />

proportions of juice, soft drinks, coffee and tea, candies and crisps.<br />

The distribution of meal patterns in different age groups and regions is shown<br />

in Table 1. The last two groups in Table 1 were combined in a further analysis of<br />

meal pattern into a single group ‘‘Other meal pattern’’ (2M), because of the few<br />

cases in the one meal group. Ninety two percent of the 2M-group ate breakfast,<br />

51% ate warm lunch and 46% ate warm dinner.


MEAL PATTERN AND <strong>NUTRIENT</strong> <strong>INTAKE</strong> AMONG ADULT FINNS<br />

17<br />

600<br />

Energy derived from sugar kjoule/hour<br />

500<br />

400<br />

300<br />

200<br />

100<br />

0<br />

0 2 4 6 8 10 12 14 16 18 20 22 24<br />

Time<br />

FIGURE 3. Distribution of energy intake derived from sugar during the day. Ε, men; Φ,<br />

women.<br />

TABLE 2<br />

Energy and nutrient intake from different eating occasions among 991 women and 870<br />

men<br />

Nutrients Meal Snack Other eating occasions Total<br />

Absolute (% of Absolute (% of Absolute (% of intake<br />

intake daily intake daily intake daily<br />

intake) intake) intake)<br />

Men<br />

Energy, kjoule 5 638 (55) 3 409 (32) 1 333 (13) 10 380<br />

Fat, g 56·1 (59) 29·2 (30) 10·1 (11) 95·3<br />

Saturated fat, g 25·0 (58) 13·9 (31) 4·1 (11) 43·7<br />

Carbohydrate, g 150 (51) 107 (36) 37 (13) 293<br />

Sugar, g 19·2 (34) 30·3 (50) 8·7 (16) 58·2<br />

Protein, g 62·7 (64) 24·9 (25) 10·2 (11) 98·2<br />

Alcohol, g 2·4 (20) 5·4 (40) 6·2 (40) 14·0<br />

Women<br />

Energy, kjoule 4 314 (55) 2 706 (34) 789 (11) 7 807<br />

Fat, g 41·8 (59) 22·3 (31) 6·6 (10) 71·1<br />

Saturated fat, g 18·5 (57) 11·0 (33) 3·1 (10) 32·6<br />

Carbohydrate, g 118 (50) 92 (39) 24 (11) 234<br />

Sugar, g 17·4 (35) 27·2 (53) 5·9 (12) 50·5<br />

Protein, g 48·0 (65) 18·8 (26) 6·8 (9) 73·9<br />

Alcohol, g 1·0 (24) 2·0 (48) 1·3 (28) 4·3


18 EVA ROOS AND RITVA PRÄTTÄLÄ<br />

TABLE 3<br />

Nutrient density of different eating occasions in 991 women and 870 men<br />

Density<br />

Nutrients In meals In snacks In other eating occasions<br />

Men<br />

Fat, E% 37·4∗ 30·9 22·8∗<br />

Saturated fat, E% 16·6∗ 14·8 10·6∗<br />

Carbohydrate, E% 45·2∗ 55·4 57·7<br />

Sugar, E% 5·6∗ 16·0 16·9<br />

Protein, E% 19·1∗ 12·1 10·6∗<br />

Alcohol, E% 1·3∗ 4·1 16·3∗<br />

Fibre, g/10 MJ 26·2∗ 21·9 18·6∗<br />

Vitamin C, mg/10 MJ 132∗ 172 183<br />

Carotenoids, mg/10 MJ 6·6∗ 2·8 3·6<br />

Cholesterol, mg/10 MJ 462∗ 316 239∗<br />

Women<br />

Fat, E% 36·5∗ 29·7 25·2∗<br />

Saturated fat, E% 16·1∗ 14·6 11·9∗<br />

Carbohydrate, E% 46·7∗ 59·3 57·0∗<br />

Sugar, E% 6·6∗ 16·9 18·2∗<br />

Protein, E% 19·2∗ 11·8 12·0<br />

Alcohol, E% 0·6∗ 2·0 6·7∗<br />

Fibre, g/10 MJ 27·8∗ 25·3 24·0<br />

Vitamin C, mg/10 MJ 181∗ 244 246<br />

Carotenoids, mg/10 MJ 9·3∗ 4·0 7·4∗<br />

Cholesterol, mg/10 MJ 449∗ 303 285<br />

∗ Starred density values are significantly different to snack density values (p


MEAL PATTERN AND <strong>NUTRIENT</strong> <strong>INTAKE</strong> AMONG ADULT FINNS<br />

19<br />

TABLE 4<br />

Daily intake of energy and nutrients by meal pattern of 888 women and 801 men<br />

Nutrients Conventional Other meal Δ 3M–2M, p-value,<br />

meal pattern pattern adjusted for adjusted for<br />

(3M), (2M), age and age and<br />

unadjusted unadjusted region region<br />

Men (N=371) (N=430)<br />

Kjoule 10656 10142 316 0·14<br />

Kcal 2548 2425 76 0·14<br />

Fat, E% 34·3 34·8 −0·2 0·60<br />

Saturated fat, E% 15·6 15·8 −0·2 0·48<br />

Carbohydrate, E% 48·9 47·6 0·8 0·15<br />

Sugar, E% 9·1 9·6 −0·6 0·09<br />

Protein, E% 16·5 16·1 0·4 0·10<br />

Alcohol, E% 3·4 4·4 −0·8 0·07<br />

Fibre g/10 MJ 24·8 23·2 0·9 0·08<br />

Vitamin C mg/10 MJ 134 136 0·4 0·94<br />

Carotenoids mg/10 MJ 4·8 4·7 0·2 0·35<br />

Cholesterol mg/10 MJ 399 394 10 0·32<br />

Women (N=377) (N=511)<br />

Kjoule 8107 7554 529 0·0003<br />

Kcal 1938 1807 126 0·0003<br />

Fat, E% 33·8 34·4 −0·2 0·60<br />

Saturated fat, E% 15·6 15·8 −0·03 0·90<br />

Carbohydrate, E% 51·7 50·5 0·6 0·27<br />

Sugar, E% 10·4 10·5 −0·2 0·49<br />

Protein, E% 16·5 16·3 0·2 0·40<br />

Alcohol, E% 1·2 1·9 −0·5 0·03<br />

Fibre g/10 MJ 26·8 25·7 0·5 0·36<br />

Vitamin C mg/10 MJ 184 201 −17 0·03<br />

Carotenoids mg/10 MJ 6·6 7·2 −0·3 0·33<br />

Cholesterol mg/10 MJ 399 385 17 0·05<br />

DISCUSSION<br />

Fewer than half the subjects followed the conventional meal pattern model used<br />

in dietary guidelines. About half those who did not follow this pattern skipped lunch<br />

and about half dinner, while breakfast was normally not skipped. The distribution<br />

of meal patterns we found corresponds well with data from a study of women in<br />

Helsinki, in which 47% ate breakfast, lunch and dinner, 27% skipped lunch and 25%<br />

skipped dinner (Prättälä et al., 1993).<br />

More than 10% of the energy intake in the present study came from the uncoded<br />

‘‘other eating occasions’’. These seemed to be partly missing entries and partly<br />

occasions when subjects were simply unable to code as either meals or snacks. In<br />

the earlier meal pattern study in Helsinki, snacks never included prepared or cooked<br />

food (Prättälä et al., 1993). The density of cooked food in ‘‘other eating occasions’’<br />

lay between those of meals and snacks; which suggests that some of the responses<br />

classified as ‘‘other eating occasions’’ were actually missing entries. The densities of<br />

beverages and typical snack foods like candies and crisps were highest for other<br />

eating occasions; maybe eating occasions that generally were not regarded as meals


20 EVA ROOS AND RITVA PRÄTTÄLÄ<br />

TABLE 5<br />

Daily intake of foods by meal pattern of 888 women and 801 men<br />

Food items g/10 MJ Conventional Other meal Δ 3M–2M, p-value<br />

meal pattern pattern adjusted for adjusted for<br />

(3M), (2M), age and age and<br />

unadjusted unadjusted region region<br />

Men (N=371) (N=430)<br />

Milk 359 345 1 0·96<br />

Cereals 95 68 26 0·001<br />

Bread 167 151 10 0·05<br />

Cheese 28 31 −2 0·42<br />

Cooked dishes 387 366 24 0·05<br />

Potatoes, pasta and rice 154 142 17 0·02<br />

Cooked vegetables 22 23 0 0·90<br />

Fresh vegetables 71 65 9 0·10<br />

Desserts and cakes 160 145 9 0·28<br />

Fruit & berries 155 174 −13 0·25<br />

Juices 135 125 5 0·71<br />

Coffee and tea 543 627 −83 0·0005<br />

Sweet and salty snacks 37 43 −6 0·13<br />

Women (N=377) (N=511)<br />

Milk 373 303 57 0·002<br />

Cereals 123 81 33 0·0002<br />

Bread 144 138 3 0·50<br />

Cheese 37 47 −7 0·005<br />

Cooked dishes 383 364 14 0·22<br />

Potatoes, pasta and rice 135 117 21 0·002<br />

Cooked vegetables 34 34 1 0·83<br />

Fresh vegetables 104 114 −2 0·75<br />

Desserts and cakes 207 189 8 0·40<br />

Fruit & berries 241 288 −45 0·0006<br />

Juices 147 147 −5 0·69<br />

Coffee and tea 639 733 −86 0·002<br />

Sweet and salty snacks 43 54 −11 0·005<br />

or snacks were not coded at all. It may have been difficult for subjects to code eating<br />

occasions as only meals or snacks; perhaps more pre-coded alternatives in the good<br />

record, e.g. drinks, would have decreased the frequency of uncoded eating occasions.<br />

Meals contributed to more than half of the daily energy and therefore retained<br />

their importance over snacks or other eating occasions during the day. However,<br />

the proportion of energy intake derived from meals (55%) was lower than that found<br />

in British and North American studies (Kennedy et al., 1982; Summerbell et al., 1995)<br />

and what was recommended in the Swedish nutrition and food recommendations<br />

(Standing Nordic Committee on Food, 1989). Uncoded eating occasions were quite<br />

commonly reported in our study, and probably some of the energy involved was<br />

actually derived from uncoded meals. Another possible reason why meals in Finland<br />

provided less of the daily energy intake than in the U.K. and U.S.A. is cultural<br />

differences in meal pattern or in defining eating occasions. The meaning of the words<br />

meal and snack might be different in Finland compared to their everyday use in the<br />

English language. For example, what is in this study meant by ‘‘meal’’ might be


MEAL PATTERN AND <strong>NUTRIENT</strong> <strong>INTAKE</strong> AMONG ADULT FINNS<br />

21<br />

better translated into English as a ‘‘proper meal’’ (Prättälä et al., 1993) and what is<br />

in this study meant by ‘‘snack’’ might be better translated into ‘‘sandwich meal’’.<br />

Also lay people and nutritional educators seemed to define eating occasions, especially<br />

breakfast, differently. Moreover, the studies themselves applied different methodologies<br />

and meal definitions.<br />

Meals contribute to protein and fat intake and snacks to sugar and alcohol<br />

intake. The macronutrient density (alcohol excluded) in the present study compares<br />

favourably with data from Virtanen (1988), who looked at the nutrient density in<br />

meals and snacks of Finnish adolescents. The only exception was the higher content<br />

of sugar among the young people’s snacks. Previous researchers have also found<br />

snacks to be higher in carbohydrate and sugar densities, and lower in protein and<br />

fat compared with meals (Pao & Mickle, 1981; Kennedy et al., 1982; McCoy et al.,<br />

1986; Summerbell et al., 1995). Differences in nutrient densities of meals and snacks<br />

can be explained in terms of food densities. In Finland cooked dishes are a primary<br />

source of fat (Roos, Kleemola & Pietinen, 1995b), so the high density of cooked<br />

dishes explains partly the high fat contribution of meals. The high consumption of<br />

vegetables during meals explains the high intake of carotenoids, and the high<br />

consumption of fruits, berries, desserts and cakes during snacks the high intake of<br />

sugars and vitamin C. Fruits, berries and fruit juices consumed as snacks seem to<br />

be more common in Finland than in the U.S.A. because we found a higher vitamin<br />

C density in snacks than meals, in contrast to the U.S.A. (Thomas & Call, 1973;<br />

Kennedy et al., 1982; McCoy et al., 1986).<br />

Findings of earlier studies in young people that snacks contribute far more than<br />

just ‘‘empty calories’’ (Thomas & Call, 1973; McCoy et al., 1986) are confirmed<br />

among adults by our findings. In fact, the fat density of snacks in our study was<br />

closer to the national recommendations (National Nutrition Council, 1989) than<br />

that of the meals. On the other hand, the sugar and fibre densities of meals were<br />

closer to the recommendations than those of snacks. Nutrient densities of snacks<br />

and meals are different and we find favourable and less favourable ‘‘components’’<br />

in both meals and snacks.<br />

The results of this study suggest, that meal pattern had only a small effect on<br />

diet and that meal pattern did not influence the healthfulness of the diet. Meal<br />

pattern had no effect on nutrient intake in men, but some effect in women; alcohol<br />

and vitamin C intakes were lower and cholesterol intake higher among women<br />

following the conventional meal pattern. Even though the differences between the<br />

meal pattern groups in women were significant, they were not large, and it is<br />

impossible to state that one meal pattern group had a more healthy diet than the<br />

others. The response rate in this study was 66% and those who answered the<br />

questionnaire had probably a healthier lifestyle than those who did not. It is possible<br />

that an association between meal pattern and the quality of diet existed in the entire<br />

population, but was not observed in this study due to selection bias. It is also<br />

possible that only a very irregular meal pattern (no warm meals daily) lowers the<br />

nutrient quality of diet. Finns eating very irregularly, i.e., less than two meals per<br />

day were too few for statistical analysis. A larger number of respondents would<br />

probably have permitted significant differences to emerge between this group and<br />

the others.<br />

Although meal pattern had no effect, or only a minor one, on nutrient intake, it<br />

had more influence on food intake. The intakes of cereals (porridge), potatoes, rice<br />

and pasta, and cooked dishes were higher and those of cheese, fruits and berries,


22 EVA ROOS AND RITVA PRÄTTÄLÄ<br />

sweet and salty snacks, and coffee and tea lower among those who followed the<br />

conventional meal pattern. Generally, the diet of the conventional meal pattern<br />

eaters seemed to be more traditional than that of the others, but did not differ in<br />

nutrient content from the more modern food pattern. The lower coffee and tea<br />

consumption among followers of the conventional meal pattern was expected; earlier<br />

studies have shown that warm and prepared meals have been replaced by coffee and<br />

tea (Mintz, 1985; Prättälä & Helminen, 1990).<br />

Today, the traditional assumption of a three meal pattern is true for less than<br />

half the population. We need new meal models in dietary guidelines which correspond<br />

better to daily meal patterns. The conventional three-meal pattern promoted in<br />

dietary recommendations seems not to be sufficiently relevant for encouraging a<br />

more nutritious diet. A healthy diet is possible both for those who follow the<br />

conventional meal pattern and for those who eat fewer meals per day. Both dietary<br />

guidelines and educators should place more emphasis on eating occasions. For<br />

example, it is more relevant to focus on meals when trying to decrease fat intake,<br />

and on snacks when sugar is the target.<br />

This study was not able to examine those with a very irregular meal pattern. The<br />

irregular meal pattern group was too small for further analysis in the present study.<br />

An irregular meal pattern could probably affect the daily nutrient intake. Other<br />

‘‘bad’’ lifestyle habits such as smoking and low physical activity may also be more<br />

common among those who eat irregularly. Unfortunately, this group of people is<br />

difficult to reach by mailed questionnaires and more likely to be found among study<br />

non-attenders. Other approaches and methods should be used to identify the irregular<br />

meal pattern group and to analyse associations between life style, irregular eating<br />

and nutrient intakes.<br />

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Received 26 February 1996, revision 25 April 1996

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