Radiance Amino Glutamine provides L-Glutamine, the most abundant amino acid in the body. It is a major fuel source for cells that line the gut wall and is a vital nutrient for the intestines to repair and rebuild. Radiance Amino Glutamine supports the health and healing of intestinal tissue and helps support normal digestive function and balance. L-gluatmine also supports muscle growth and athletic performance and can assist with healthy recovery from exercise.