About this ingredient
Ingredients
L-Glutamine is a naturally occurring amino acid that the body can produce and that is also obtained from protein-containing foods. It is involved in protein synthesis, nitrogen metabolism, and other cellular processes. L-Glutamine supplements are commonly provided as free-form L-glutamine in powders, capsules, or tablets. The exact amount and formulation vary by manufacturer.
L-Glutamine is the most abundant amino acid in the blood and skeletal muscle and plays an important role in protein synthesis and nitrogen transport. Although the body normally produces glutamine, demand can increase during periods of physiological stress.
L-Glutamine is naturally present in protein-rich foods such as meat, eggs, dairy products, beans, and other protein-containing foods. It is also commonly available as a dietary supplement, particularly in powders, capsules, and tablets.
Glutamine supplements are frequently included in sports nutrition, active-lifestyle, muscle-support, and general amino-acid formulations. However, evidence for improving exercise performance or muscle recovery in healthy adults is limited, so supplementation should not be presented as a guaranteed performance benefit.
When purchasing L-Glutamine, check the amount per serving, product form, additional ingredients, serving instructions, and manufacturer information. People with medical conditions or those taking medications should consult a qualified healthcare professional before using high-dose amino-acid supplements.