L-Glutamine

L-Glutamine is also one of the primary fuel sources for the cells in the gastrointestinal and immune systems. Because your body needs more than it can produce under certain conditions like intense or prolonged physical stress, L-Glutamine supplementation may help support healthy muscles, digestion, and immune function. Along with the amino acids L-Cysteine and L-Glycine, L-Glutamine is also used by the body to form Glutathione, or the "Master Antioxidant."