Glutamine is the most abundant amino acid found in human muscle tissue. The benefits of Glutamine are many & research has demonstrated that high levels of stress can massively deplete this vital amino acid. For those who participate in intense exercise & sport, this will mean your stress levels will be through the roof whilst performing & upon retiring from your activity. Supplementing with Pro-Glutamine could help assist with the catabolic action of cortisol (breakdown of muscle) created by intense exercise. Also Glutamine has been shown to elevate growth hormone production. Growth hormone is a hormone the body produces that aids muscle growth & reduces bodyfat. Pro-Glutamine is made from the purest free form L-Glutamine available.