Life Extension, L-Glutamine 500mg, For Mood, Muscle and Immune Support, Gluten Free, NON GMO, 100 Vegetarian Capsules, Dietary Supplement

Glutamine is the most abundant free amino acid circulating in the blood and stored in the skeletal muscles. Glutamine is a diverse amino acid that is utilized in numerous vital functions. It is necessary to rapidly dividing cells, including the gut and immune systems. It is also used as an energy source in mitochondria 180 and is a precursor of the brain neurotransmitter glutamate. Glutamine is also needed for optimal nucleotide biosynthesis and protein synthesis. Glutamine is an essential fuel for some immune cells, such as lymphocytes and macrophages, with specific immunostimulatory effects.