Greupner, T.; Schneider, I.; Hahn, A.: Calcium Bioavailability from Mineral Waters with Different Mineralization in Comparison to Milk and a Supplement. In: Journal of the American College of Nutrition 36 (2017), Nr. 5, S. 386-390. DOI: https://doi.org/10.1080/07315724.2017.1299651
Zusammenfassung: | |
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 (AUC0–10h) and 24-hour urinary calcium excretion. Results: In all groups, no significant differences in the AUC0-10h 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 SO42− or of HCO3 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. | |
Lizenzbestimmungen: | CC BY-NC 4.0 Unported |
Publikationstyp: | Article |
Publikationsstatus: | publishedVersion |
Erstveröffentlichung: | 2018 |
Die Publikation erscheint in Sammlung(en): | Naturwissenschaftliche Fakultät |
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