Forget Cross Fit or a tight fight in t-shirts, when it comes to boosting their biceps, men's best bet for bulking up may be betaine. New research suggests supplementation with betaine improves body composition and performance among strength-trained men. The study appeared in the Journal of the International Society of Sports Nutrition.
Better bench presses with betaine
Betaine may improve the body composition and performance of gym rats (not lab rats), suggests a new study.