Bestvite's L-Glutamine is provided in L-form for better biological effect. L-Glutamine is the most abundant amino acid in the body and is involved in many metabolic processes. L-Glutamine protects muscle tissue, supports immune functions and intestinal integrity during stressful situations. During periods of stress the body may require more L-Glutamine than it can produce. It is also involved in maintaining gut mucosal integrity which may deteriorate during stress.*