L-Glutamine plays an important role in nucleotide synthesis. It functions as a critical fuel for lymphocytes and gut epithelial cells.L-Glutamine is essential in the endogenous synthesis of glutathione.It is an essential amino acid, which is useful in stressful conditions.L-Glutamine is involved in protein synthesis, wound healing, regulating acid-base balance, cellular differentiation, acts as an energy source and modulates the immune system.