L-Glutamine is the most common of the amino acids and is found in large amounts in your muscles. In fact, approximately 60% of the total amount of amino acid in the muscle is glutamine.

Natural sources of glutamine are grass-fed beef, wild caught fish, cottage cheese, asparagus and broccoli. Even if you make sure that you include glutamine rich foods in your diet, or even by topping up your glutamine levels from using whey powder, it can still be beneficial to take a supplement. The low dose of 500 mg L-Glutamine can make sure that your levels will be restored.