Glutamine is an amino acid of great importance for the sports performance acting as muscle mass recupertaor and anticatabolic. L-glutamine is a non essential amino acid that can be synthesized in the body from other amino acids such as valine, isoleucine and glutamic acid. However, it is considerated a conditioned essential amino acid or semi essential. Because in certain conditions (stress, trauma, infection, intense workout, etc.) its consumption is higher than its synthesis: the body demnds so much glutamine quantity that it is unable to synthesized in sufficient quantity. There have been significant decreases in plasma levels, that at the same time are involved with catabolic stages, decreased number of white blood cells and intestinal or renal impairement.
L-glutamine is the most abundant amino acid in the muscle tissu and blood (it reoresents more than 60% of the total free amino acids in blood content). It has an essential role in the protein synthesis and the muscle recovery after intense workout. It presents two nitrogen atoms, wich turns it into a good nitrogen source. So, during the workout, the glutamine can be used as an energy source, preventing protein catabolism produced during long exercises or even resting.
Glutamine can also contribute to the recovery of muscle glycongen after the workout. Because it is a glucose precursor. Apart from its muscle anabolic capacity, it can increase the Growth Hormone synthesis and together to the cisteine, favours the gluthatione synthesis, a powerful antioxidant.