2014 Volume 72 Issue 2 Pages 51-66
Purpose: This study aimed 1) to elucidate the usual main dietary sources of some minerals (potassium, phosphorus, manganese, sodium, calcium, magnesium, and iron) according to food groups, and 2) to clarify the relationship between calcium and iron intake and the other nutrient intakes.
Methods: Subjects were included from three different age groups (elementary school students, n = 72, college students, n = 204, and the elderly, n = 55). Food and nutrient intake was assessed by weighing 4-day dietary records by using the Standard Tables of Food Composition in Japan -2010-. Food and nutrient intakes were compared according to age groups and mineral intake groups.
Result: Milk and other dairy products were the main sources of calcium, cereals were the main sources of manganese, and seasonings or spices were the main sources of salt intake. Many food groups contributed to the intake of potassium, magnesium, potassium, and iron. The main food sources of these minerals differed between age groups and their mineral intake groups. The appropriate intake of food containing high calcium and iron levels along with a variety of foods might improve the intake of both nutrients.
Conclusion: The high intake of calcium and iron-rich foods might improve the intake of other nutrients.
