L-glutamine (also known as glutamine) is an amino acid that the human body can make on its own. In addition to being the most abundant amino acid in the body, L-glutamine is found in a wide variety of foods. As a supplement, it is taken for a variety of different conditions, such as:
People also take it to enhance athletic performance and to help build muscle. Most of these claimed benefits have no scientific evidence in their favor, so these claims should be evaluated critically. This supplement is not suitable for everyone. Talk with your healthcare provider before taking L-glutamine if you:
- Have severe liver disease, such as liver failure
- Have bipolar disorder (also known as manic depression)
- Have seizures or epilepsy
- Are allergic or sensitive to MSG (monosodium glutamate).
(To learn more about this supplement, including details on side effects, click L-Glutamine.)