Glutamine is the most abundant of 20 different amino acids in your body. An amino acid is a building block of protein. Proteins help with many jobs. For example, proteins can help repair body tissues, keep your digestive system working and help your immune system fight germs. L-Glutamine is an amino acid that serves several important functions in the body, including:
Muscle recovery and growth
Immune system support
Gut health maintenance
Brain function support
It’s often used as a supplement by athletes, bodybuilders, and individuals with certain health conditions.