Research shows that after intensely working out, glutamine levels in the body are reduced by as much as 50%. Since the body relies on glutamine as cellular fuel for the immune system, scientific studies have shown that glutamine supplementation can minimize the breakdown of muscle tissue and improve protein metabolism (the ability to build muscle).
Muscle recovery supplements speeds up the time it takes muscles to recover, therefore allowing us to train harder and longer. Anyone who undertakes frequent or intensive exercise would benefit from adding a post-workout recovery drink.