POSTER BİLDİRİLER - Spor Bilim

I. ULUSLARARASI FİZİKSEL AKTİVİTE, BESLENME VE SAĞLIK KONGRESİ
1 st INTERNATIONAL PHYSICAL ACTIVITY, NUTRITION AND HEALTH CONGRESS
Nutrition and Bone Health
Prof Dr Sevil BAŞOĞLU
İstanbul Bilgi University, School of Health Sciences, Department of Nutrition and Dietetics,
Istanbul,Turkey
Nutrients, and eating patterns have an important role for the development and
maintenance of bone mass in all lifestages of life. Critical nutrients and nutritional factors
affecting bone health are calcium, phosphorus, vitamin D, vitamin K, vitamin A, protein,
energy, magnesium, flouride and some phytochemicals.
For adults and older individuals; adequate dietary intake of these nutrients or the
correction of their dietary deficits supports the maintenance of bone mass and can
contribute to the prevention of bone health problems . In children and adolescents,
improvement of dietary quality and sufficient intake of them support growth and contribute
to reach the peak bone mass by the end of the growth years. Although it is possible to meet
dietary referance intake for nutrients with careful planning, most people get less nutrients,
e.g.calcium, vitamin D, than the reference level. Many individuals also fail to consume a
sufficient amount of vitamin D each day. Excessive intakes of dietary components e.g.
energy, protein, sodium, phosphorus, may also have adverse effects on bone health. There is
a controversial evidence about the effect of high dietary protein intake on bone health.
According to some experts, dietary meat, poultry, fish, eggs, and dairy metabolized, into
sulfuric and organic acids that might raise the acidity of the blood. Chronic high levels of
these acids induced by protein rich diet may cause excessive leaching of the calcium in bone.
Some other says that as long as the calcium intake is sufficient the body compensates for
this protein-induced loss of calcium from the bone. According to some researchers, fruit and
vegetable rich diets produces alkaline compounds which neutralize protein induced acid
levels in the blood and may reduce leaching of calcium from bone. The negative effect of
high vitamin D intake is another example. In older adults with vitamin D deficiency, it is
recommended that to give a single oral dose of vitamin D annually as a way to correct the
deficit. However a new study results suggest that annual high-dose vitamin D may actually
negatively affects bone health and may increase fracture risk
Low bone mass and poor bone quality is defined as osteoporosis which is an
important bone health problem in the world. The risk factors of osteoporosis that can be
modified such as; low body weight, inadequate intake of calcium and vitamin D, eating
disorders, excessive alcohol consumption are related with diet and nutrition. Modification of
these risk factors is very important for prevention of osteoporosis.
23 – 26 KASIM 2011 WOW KREMLİN PALACE, ANTALYA, TÜRKİYE
23 – 26 NOVEMBER 2011 WOW KREMLIN PALACE, ANTALYA, TURKEY 16