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 HighWire Citing Articles via Google Scholar Google Scholar Articles by Tadayyon, B. Articles by Lutwak, L. Search for Related Content PubMed PubMed Citation Articles by Tadayyon, B. Articles by Lutwak, L.

Interrelationship of Triglycerides with Calcium, Magnesium and Phosphorus in the Rat¹

Graduate School of Nutrition, Savage Hall, Cornell University, Ithaca, New York

Two-week balance studies were carried out in weanling rats to investigate the effects of nature and level of triglycerides on calcium, magnesium and phosphorus metabolism and to study the effect of calcium, phosphorus and calcium-to-phosphorus (Ca/P) ratio on digestibility of triglycerides. Supplementation of fat-free diet with 25% tripalmitin or tristearin depressed calcium and magnesium absorption and retention, but had no effect on phosphorus metabolism. Diets containing 5% triolein, tripalmitin or tristearin or 25% triolein did not differ from the fat-free diet. Ca/P ratio of 0.05 or 13.75 lowered digestibility of tripalmitin and tristearin, but not that of triolein. Supplementation of 25%-tristearin diet with either 5% triolein, 5% monoolein, or 2.5% monoolein plus 2.5% oleic acid had no effect on absorption of tristearin, calcium, magnesium or phosphorus. Increasing dietary palmitin from 10 to 20% lowered calcium and magnesium absorption; a further increase of intake to 30% was without additional effect. Substituting 5% triolein for 5% tripalmitin improved absorption of calcium and magnesium at 5%- and 15%-tripalmitin intake, but not at 25%. Phosphorus metabolism was not affected in either case.

² Present address: University of Michigan School of Public Health, Ann Arbor, Michigan.

Manuscript received 5 August 1968.

This article has been cited by other articles:

				A.M. Perez-Granados, M.P. Vaquero, and M.P. Navarro Calcium and phosphorus bioavailability in rats consuming oil from either raw sardines or sardines fried in olive oil Biodisponibilidad de calcio y fosforo en ratas alimentadas con grasa de sardina cruda o frita con aceite de oliva Food Science and Technology International, January 1, 2000; 6(5): 387 - 397. [Abstract] [PDF]