Glutamine, also known as Glutamine acid, is the most abundant non-essential amino acid in the body and the only one that can pass
directly through the cerebral vascular barrier (BBB).Stored in skeletal muscle or blood in the human body.In case of injury or illness, glutamine may need to be ingested in glN-containing foods to obtain adequate amounts.Glutamine is produced by a reaction
between glutamic acid and ammonium by an organism catalyzed by a glutamine synthase.