L-glutamine is an amino acid that is naturally produced by the human body. It is also found in a wide variety of foods and is available in the form of dietary supplements. The supplements are claimed to be beneficial for numerous conditions, including insomnia, anxiety, and depression. Most people tolerate this amino acid well, although the grittiness of L-glutamine powder can be unpleasant for many people.
What Is L-Glutamine?
L-glutamine (also known as glutamine) is a non-essential amino acid. This means that it does not need to be obtained from dietary sources, since the human body can make it on its own. L-glutamine is the most abundant amino acid in the human body and is also found in a wide variety of foods. It is also used in dietary supplements and is claimed to be useful for a variety of different conditions, such as depression, anxiety, insomnia, and various nutritional disorders.
L-glutamine is an amino acid. It is important for building proteins and other amino acids. For most people, the body can make more than enough of its own L-glutamine, although L-glutamine is also found in protein-rich foods. In addition to its use as a building block for making proteins, it also has several other functions in the body. It serves as a fuel for various different types of cells in the body, including several types of immune cells.
In times of severe physical stress, it is very important for maintaining sufficient immune function and intestinal function and is essential for wound healing. In such situations, the body may not be able to produce enough L-glutamine to meet the body's needs. In such situations, supplementation (usually given by IV) can be helpful.
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
Last reviewed by: KristiMonson, PharmD;
List of references (click here):
Jellin JM, editor. Pharmacist's Letter/Prescriber's Letter Natural Medicines Comprehensive Database Web site. Available at: http://naturaldatabase.com/. Accessed March 26, 2008.
Food and Nutrition Board, Institute of Medicine. Dietary Reference Intakes for Energy, Carbohydrates, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids (Macronutrients). Washington, DC: National Academy Press, 2005. Available at: http://books.nap.edu/openbook.php?record_id=10490&page=R1. Accessed March 26, 2008.
eMedTV serves only as an informational resource. This site does not dispense medical advice or advice of any kind.
Site users seeking medical advice about their specific situation should consult with their own physician. Click