The Effect of Dietary Animal Protein on Calcium Metabolism
The urinary excretion of calcium has been reported to increase with dietary protein, which may contribute to an increased incidence of urolithiasis. The mechanism by which urinary calcium increases has been suggested to be a stimulated intestinal absorption1 , but later studies have pointed towards a primary renal effect, due to a decreased tubular reabsorption of calcium2. In order to simulate a normal outpatient situation as close as possible we compared the effects on calcium metabolism on a high protein diet to an isoenergetic low protein diet.
- 1.McCance, R. A., Widdowson, E. M., Lehmann, H.: The effect of protein intake on the absorption of calcium and magnesium. Biochem. 36: 686–691 (1942).Google Scholar