Grenade\ufffds 100% pure L-glutamine powder is a great supplement to add to your training regime, helping to minimize muscle breakdown and supporting immune health and intestinal health. L-glutamine is the most abundant amino acid in your body. It accounts for more than 60% of the free amino acids in skeletal muscle, meaning it is highly concentrated in muscle tissue. Following intense exercise, L-glutamine levels fall significantly, so supplementation is a must for any serious athlete participating in physical training.