No protein intake compensation for insufficient indispensable amino acid intake with a low-protein diet for 12 days.

ABSTRACT:

Background

Protein quality evaluation aims to determine the capacity of food sources and diets to meet protein and indispensable amino acid (IAA) requirements. This study determined whether nitrogen balance was affected and whether dietary IAA were adequately obtained from the ad libitum consumption of diets at three levels of protein from different primary sources for 12 days.

Methods

Two 12-day randomized crossover design trials were conducted in healthy subjects [n = 70/67 (M/F); age: 19-70 y; BMI: 18.2-38.7 kg/m(2)]. The relative dietary protein content was lower than [5% of energy (En%)], similar to (15En%), and higher than (30En%) customary diets. These diets had a limited variety of protein sources, containing wheat protein as a single protein source (5En%-protein die

SUBMITTER: Martens EA 

PROVIDER: S-EPMC4147096 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature