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Item #: LEFLGL
Reg. Price: $14.99
Our Price: $11.24

Description  more details

 Life Extension L-Glutamine, 500mg, 100 caps

Glutamine is a nonessential amino acid that is the most abundant free amino acid in human muscle and plasma.

It is necessary for rapidly dividing cells, including those of the gut and immune system.

It is also used as an energy source in mitochondria, and is a precursor of the brain neurotransmitter glutamate.

Glutamine is also needed for optimal nucleotide biosynthesis and protein synthesis.

Glutamine is a very diverse amino acid that is utilized in numerous functions that are important for daily living.

People that do heavy exercising can lower their glutamine levels causing stress to their body and immune systems.

For that reason supplementing with glutamine can be an important part of a serious athlete’s program or someone challenged with loss of muscle, or just wanting to help maintain optimal immune function while under heavy stress.


There is evidence that undertaking prolonged, exhaustive exercise such as running a full marathon or intensive training sessions can reduce blood concentrations of glutamine and increase the risk of infection.

Glutamine is a nonessential amino acid that is an important fuel for some cells of the immune system such as lymphocytes and macrophages that may have specific immunostimulatory effects.

Life Extension's mission is simply to help you live a healthier, longer life. They are at the forefront of medical research, constantly looking for ways to prolong youth, health, and life. They have been at it for more than 34 years, investing more than $140 million to find therapies and technologies that could lead to lifesaving cures for the diseases of aging.

Life Extension insists on purchasing only the highest quality raw materials from all over the world, primarily from leading US, Japanese and European sources. They go one step further by using advanced analytical methods, such as high-performance liquid chromatography and gas chromatography/mass spectrometry, to ensure Their products meet label claims for potency and purity. Life Extension tests its raw materials using US Pharmacopeia and other exacting pharmaceutical assay standard.

Supplement Facts:

Serving Size: 1 capsule

Servings Per Container: 100

Amount Per Serving:


500 mg

(free form amino acid)


Other ingredients: rice flour, magnesium stearate, gelatin, water.

Contains rice. This product contains NO milk, egg, fish, peanuts, crustacean shellfish (lobster, crab, shrimp), soybeans, tree nuts, wheat, yeast, gluten, or corn. Contains NO sugar, and no artificial sweeteners, flavors, colors, or preservatives.

Dosage and Use:

Take one capsule once or twice daily on an empty stomach, or as recommended by a healthcare practitioner.


Insomnia may occur from over-stimulation if L-glutamine is taken too close to bedtime.




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