DIMINISH MUSCLE CATABOLISM
Glutamine also helps to diminish catabolism caused by an increase in the stress hormone cortisol, which is elevated during exercise. A recent study conducted on the effects of glutamine on the muscle found that it actually blocks the action of cortisol’s interference with muscle protein synthesis and repair. This study shows that glutamine can provide an anti-catabolic effect. It can minimize the amount of muscle breakdown and can be particularly helpful when consumed after working out, when catabolism is at its peak.