Nutritionally supports the mucosal lining and the healthy functioning of the gastrointestinal tract, as well as lean muscle mass | L-Glutamine is the most abundant amino acid in the body. In times of metabolic stress, glutamine is utilized by the body for tissue repair and gastrointestinal tract support. Glutamine plays a large role in maintaining healthy intestinal integrity by enhancing the intestine capsules by Pure Encapsulations protective mucosal lining. In addition, glutamine is important in the preservation of muscle mass.