[Nutrition and bone health. Magnesium-rich foods and bone health].

About 60% of magnesium in human body is present in the skeleton. Various foods are containing magnesium. The major sources are foods of plant origin like grain, vegetable and pulse. EAR (estimated average requirement) and RDA (recommended dietary allowance) are set for age 1 year or over in Japan. There may be a large number of people who have inadequate intake of magnesium judging by the results of the national nutrition survey. Adequate intakes of magnesium and also other nutrients related bone health are desired.