QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Purchase Article View Shopping Cart Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Schuette, S. A. Articles by Linkswiler, H. M. Search for Related Content PubMed Articles by Schuette, S. A. Articles by Linkswiler, H. M.

Effects on Ca and P Metabolism in Humans by Adding Meat, Meat Plus Milk, or Purified Proteins Plus Ca and P to a Low Protein Diet^1,2,

Department of Nutritional Sciences, University of Wisconsin, Madison, WI 53706

The effects on calcium and phosphorus metabolism of adult man by adding meat or meat plus dairy products to a diet low in protein (55 g), calcium (590 mg), and phosphorus (890 mg) were determined. When the low protein diet was consumed, the subjects retained a mean of 20 mg calcium daily but lost 106 mg phosphorus. The addition of meat which increased protein and phosphorus to 146 g and 1660 mg, respectively, caused calcium retention to decrease from 19 to -17 mg but phosphorus retention to increase from 106 to 55 mg. When the meat plus dairy diet high in protein (146 g), calcium (1370 mg), and phosphorus (2060 mg) was consumed the subjects retained substantial amounts of calcium (101 mg) and phosphorus (177 mg). The simulated diets high in purified proteins and supplemented with calcium and phosphorus affected calcium retention in manner similar to the meat and meat plus dairy diets, but they had a marked negative effect on phosphorus retention; this indicates that supplements of calcium gluconate were well utilized but that those of monopotassium phosphate were not. The results obtained on urinary sulfate, acid, cyclic AMP and hydroxyproline support the conclusions made from the calcium and phosphorus data.

KEY WORDS: • meat intake • milk intake • calcium:phosphorus balance

¹ Supported in part by the College of Agricultural and Life Sciences, University of Wisconsin, Madison, and by a grant from the National Dairy Council, Rosemont, IL.

² Schuette, S. A. and Linkswiler, H. M. (1981) Ca retention as affected by high protein diets varying in calcium and phosphorus content. Fed. Proc. 40, 920 (abstract).

³ Current address is Department of General Surgery, Milton S. Hershey Medical Center, The Pennsylvania State University, Hershey, PA 17033.

Manuscript received 20 July 1981.