兵庫県の都市部在住の乳幼児に対する自家製離乳食のミネラル含有量の評価

抄録

Twenty-five duplicate diet samples of homemade baby foods prepared for infants and toddlers aged 8 to 16 months were collected from their mothers living in an urban area of Hyôgo Prefecture in Japan and their mineral (sodium, potassium, calcium, magnesium, phosphorus, iron, zinc, copper, manganese, iodine, selenium, chromium and molybdenum) contents were determined. Mineral contents obtained were expressed as values per 1000 kcal and compared with the adequate intake (AI) for infants aged 6 to 11 months or the estimated average requirement (EAR) for toddlers aged 1 to 2 years described in Dietary Reference Intakes for Japanese, 2010 (DRI-J).

All mineral contents in the homemade baby foods were almost met the reference values in DRI-J. In particular, contents of magnesium, phosphorus, manganese, selenium, chromium and molybdenum in baby foods prepared for 6 to 11 months babies were markedly higher than the AI. Iodine contents in the baby foods were remarkably varied from near 0 to more than 1000 μg/1000 kcal. These results indicate that 1) mineral contents in the homemade baby foods collected fell within the suitable range, 2) intakes of magnesium, phosphorus, manganese, selenium, chromium and molybdenum increase with the progress of weaning, and 3) an intermittent high iodine intake is important to satisfy the iodine requirement in infants and toddlers.