PMID: 6537872Jan 1, 1984Paper

A long-term metabolic balance study in young men to assess the nutritional quality of an isolated soy protein and beef proteins

The American Journal of Clinical Nutrition
V R YoungN S Scrimshaw

Abstract

To evaluate the capacity of an isolated soy protein to maintain long-term protein nutritional status in healthy young adult men, an 84-day metabolic balance experiment was conducted in eight subjects. The sole source of protein intake was provided by the isolated soy protein, given at a level of 0.8 g (N X 6.25) per kg per day. In a second and similar study, four young men received 0.8 g protein and three subjects 0.68 g protein per kg per day from beef proteins for 60 to 81 days. Body weight, nitrogen balance, blood chemistries, and body composition (whole body 40K) were monitored throughout each study. Body nitrogen balances were maintained within the range of N equilibrium in both diet groups. Body cell mass, as judged from 40K measurements, did not reveal any deterioration in protein nutritional status. These observations confirm the prediction, derived from previous short-term. N balance studies, that the nutritional quality of isolated soy protein is high and that this plant protein can serve as the sole source of essential amino acids and nitrogen for protein maintenance in adults.

Citations

Oct 1, 1994·The British Journal of Nutrition·A BaglieriD Tome
Mar 1, 1997·Journal of Biomedical Science·S.-C. Lu, P.-C. Huang
Mar 14, 2003·Public Health Nutrition·Victor KipnisRaymond J Carroll
Oct 31, 2012·The British Journal of Nutrition·G Sarwar Gilani
Jan 6, 2018·Nutrients·Gianluca Rizzo, Luciana Baroni
Feb 24, 2001·American Journal of Epidemiology·V KipnisR J Carroll
Aug 31, 2004·The British Journal of Nutrition·D Joe Millward
Feb 28, 2002·The American Journal of Clinical Nutrition·Neil R GibsonAlan A Jackson
Jun 28, 2007·The Journal of International Medical Research·S PalovaM Kvapil
Dec 25, 2002·The American Journal of Clinical Nutrition·William M RandVernon R Young
Oct 31, 2012·The British Journal of Nutrition·Stuart M Phillips
Oct 31, 2012·The British Journal of Nutrition·Daniel Tome
Oct 25, 2011·Journal of Agricultural and Food Chemistry·Glenna J HughesCharles S Schasteen

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