Conjugated linoleic acid
This article was originally published in The Tan Sheet
Executive Summary
Ingredient's benefits questioned by USDA Agricultural Research Service researchers in July issue of Lipids. Single-blind study conducted in 1998 found CLA supplementation in 17 non-smoking, healthy women ages 20-41 does not build muscle, lower blood-fat or alter any of 12 immune response indices. Previous animal data suggested immune system, body fat, cardiovascular health benefits; Norwegian study found positive results in obese subjects (1"The Tan Sheet" Jan. 8, In Brief). USDA group suggests results could differ with greater consumption over time, different CLA mixture