水道水からのミネラル摂取量と栄養所要量との比較について : カルシウムとマグネシウム

概要

論文の詳細を見る
Water is the most vital nutrient. However the Recommended Dietary Allowances (RDAs) for the Japanese have not taken into consideration of tap water, especially Ca content. This study has been designed to clarify the following two purposes: to measure minerals in tap water supply and add up the results to national nutrition survey data, and to compare the results of daily calcium intake thus obtained with RDA. The samples of tap water were collected from six different locations; Saitama prefecture (Urawa-, Hanno- and Higashimatsuyama-city), Tokyo metropolis (Nerima-ward), Tochigi prefecture (Haga-town) and Niigata prefecture (Itoigawa-city). The samples were analyzed by atomic absorption spectrophotometer. These results show that the daily calcium consumption plus amount contained in 2 liter tap water somewhat agrees with RDA value. We propose that tap water should be included in the estimation of nutritional status. Our results indicated that magnesium lack might correlate with the increased calcium intake, because these foods rich in calcium has low magnesium content. Therefore, it should be better to choose, various food groups rather than to take only calcium rich foods in a long term dietary habit.
武蔵丘短期大学の論文
1996-12-15