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 Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Meintzer, R. B. Articles by Steenbock, H. Search for Related Content PubMed PubMed Citation Articles by Meintzer, R. B. Articles by Steenbock, H.

Vitamin D and Magnesium Absorption¹

Department of Biochemistry, College of Agriculture, University of Wisconsin, Madison

A series of experiments with 90-gm rats revealed that Mg was absorbed equally well when added at a level of 0.12% of the ration as the carbonate, phosphate, or phytate to a low-P, low-Ca semi-synthetic diet. The amount absorbed in the absence of vitamin D ranged from 50 to 71% of that ingested to a range of 53 to 77% when vitamin D was given. This increase was obtained consistently with all rations and in the absence of a large need for the Mg available since most of that ingested appeared in the urine. Dietary changes, such as the addition of calcium carbonate and sodium bicarbonate, or inorganic phosphate did not affect this absorption but the addition of phytic acid reduced it slightly. Similarly, Mg limited to the levels which could be fed without inducing catharsis was without effect on the absorption of P, or on the hydrolysis of phytic acid.

Manuscript received 17 December 1954.