Calcium Bioavailability from Mineral Waters with different Mineralization in Comparison to Milk and a Supplement
- authored by
- Theresa Greupner, Inga Schneider, Andreas Hahn
- Abstract
Objective: The aim of the present study was to compare the bioavailability of calcium from 3 mineral waters with different concentrations of minerals with that of milk and a calcium supplement. Methods: A single-center, randomized controlled trial with a crossover design with 21 healthy men and women was conducted at the Institute of Food Science and Human Nutrition, Leibniz University Hannover. The participants consumed the 5 test products providing 300 mg of calcium each on 5 examination days with 1-week wash-out phases in between. Primary outcome variables were the area under the curve of serum calcium levels for 10-hour (AUC
0–10h) and 24-hour urinary calcium excretion. Results: In all groups, no significant differences in the AUC
0-10h of serum calcium levels as well as in the 24-hour urinary calcium excretion were observed. Likewise, mean changes in serum phosphate and urinary phosphate, as well as serum parathormone, showed no differences between the groups. Conclusion: Given an equivalent bioavailability of calcium in all test products, neither a high concentration of SO
4
2− or of HCO
3 influenced the bioavailability of calcium. Accordingly, the use of mineral water with high concentrations of calcium constitutes a calorie-free calcium source that can improve calcium supply.
- Organisation(s)
-
Institute of Food Science and Human Nutrition
Nutrition Physiology and Human Nutrition Section
- Type
- Article
- Journal
- Journal of the American College of Nutrition
- Volume
- 36
- Pages
- 386-390
- No. of pages
- 5
- ISSN
- 0731-5724
- Publication date
- 04.07.2017
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Medicine (miscellaneous), Nutrition and Dietetics
- Sustainable Development Goals
- SDG 3 - Good Health and Well-being
- Electronic version(s)
-
https://doi.org/10.1080/07315724.2017.1299651 (Access:
Unknown)