Effect of a moderate increase in dietary protein on the retention and excretion of Ca, Cu, Fe, Mg, P, and Zn by adult males
Open Access
- 1 January 1983
- journal article
- research article
- Published by Elsevier in The American Journal of Clinical Nutrition
- Vol. 37 (1), 8-14
- https://doi.org/10.1093/ajcn/37.1.8
Abstract
Mineral utilization was studied by metabolic balance techniques in 10 healthy male volunteers fed diets containing 65 and 94 g protein. Both diets contained approximately 650 mg calcium, 1 mg copper, 16 mg iron, 250 mg magnesium, 1000 mg phosphorus, and 7 mg zinc. The diet consisted of conventional foods; the additional 29 g protein was egg white protein mixed into a beverage and fed twice per day. Plasma mineral levels were not affected by the increase in dietary protein. When the diet provided 94 g of protein, urinary calcium and zinc were slightly, but significantly, increased by an average of 38 mg (p > 0.05) and 0.15 mg (p > 0.001), respectively. Apparent mineral absorption and balance were unchanged by this modest increase in dietary protein.This publication has 27 references indexed in Scilit:
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