L-Glutamine is a dietary supplement that serves for exercised muscles do not lose volume; It promotes the regeneration of muscle fibers promoting their development, promotes the increase of strength, endurance and muscular mass, reduce the levels of muscular stress caused by the intense exercise; It may also be beneficial in cases of arthritis, immuno-deficient diseases, fibrosis, intestinal disorders, peptic ulcers, tissue damage by radiation, cancer (in some cases, abnormal subminal glutamine levels are detected.