Contribution of direct-drinking water to calcium and magnesium and the influence on the height in school-age children

作者：Hongru Gu, Yijing Gong, Li Zhao, Yanqiu Zhang, Jin Wu, Yi-Xiang Wang, Min Ni, Jun Zhang, Hai Jiang · 发表于：Frontiers in Nutrition · 年份：2024 · DOI：10.3389/fnut.2024.1434952 · 被引用次数：4 · 研究领域：Magnesium in Health and Disease、Hydrogen's biological and therapeutic effects、Child Nutrition and Water Access

Objective To estimate the contribution of direct-drinking water provided in school to dietary intake (DI) and recommended nutrient intake (RNI) of calcium and magnesium, and to explore its influence on the height in school-age children. Methods Tap water and direct-drinking water samples were collected from schools in Taicang City to test the contents of calcium and magnesium, and compared by one-way ANOVA and post-hoc test. Contribution rates of direct-drinking water to DI and RNI were calculated by using the contents of calcium and magnesium and data from the Nutrition and Health Status Survey 2021 . A retrospective cohort was conducted among 4,850 first-grade children consuming direct-drinking water in Taicang City from 24 primary schools in 2019. Group 1 (1,070 boys and 946 girls) consumed UF-process water with normal calcium and magnesium contents and Group 2 (1,548 boys and 1,286 girls) consumed NF/RO-process water with very low calcium and magnesium contents. During 2019–2023, the height and height growth were analyzed with the Student’s t -test. Results The highest calcium content was examined in tap water samples, followed by direct-drinking water samples supplied through a UF, NF, and RO system ( F = 1,227.725, p < 0.001). The highest magnesium content was examined in water supplied through a UF system, followed by that through a tap, NF and RO system ( F = 146.504, p < 0.001). Calcium and magnesium contents in direct-drinking water supplied through a ...