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Thorne Research, L-Glutamine, 90 Veggie Caps

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In Stock
  • Expiration Date: Oct 2018
  • Shipping Weight:
    0.24 lbs
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  • Product Code: THR-51802
  • UPC Code: 693749518020
  • Package Quantity: 90 Veggie Caps
  • Dimensions:
    3.8 x 2 x 2 in, 0.2 lbs
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Save $4.33 when you purchase these items today for only $21.31
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Product Overview


  • Dietary Supplement
  • Hypoallergenic

L-Glutamine primary fuel for the cells lining the small intestine

  • promotes gastrointestinal and immune health
  • supports a healthy nervous system
  • a nutrient that is essential for wound healing
  • made without flowing agents that can inhibit its bioavailability

L-glutamine is the most prevalent amino acid in the bloodstream. It is found in high concentration in skeletal muscle and lung, liver, brain, and gastrointestinal tissues. Skeletal muscle contains the greatest intracellular concentration of glutamine, comprising up to 60 percent of total body glutamine stores, and muscle is the primary storage depot and exporter of glutamine to other tissues. However, the gastrointestinal tract is the greatest user of glutamine in the body because glutamine provides the primary fuel for the nutrient-absorbing cells that line the walls of the small intestine.

Various stressors – such as trauma, infection, malnutrition, chemotherapy, and others – can impact the normal function of the enterocytes of the small intestine by adversely affecting how substances are absorbed. For example, when gut permeability is impaired it can allow large protein molecules to diffuse across the intestine – that would otherwise not – and enter the bloodstream. The body can identify these large protein molecules as foreign and mount an immune reaction against them, which can result in the development of food allergies. In numerous animal studies, in which hyper-permeability of the intestine is experimentally induced, the addition of glutamine improved permeability function as well as the gut's immune function.

Under certain circumstances the body's tissues need more glutamine than the amount supplied by diet and internal production. In times of metabolic stress, glutamine is released from the muscles into the bloodstream, where it is transported to the tissues in need. But glutamine concentration in the skeletal muscles can be affected by various insults, including injury, infection, prolonged stress, malnutrition, and the use of glucocorticoids. Research demonstrates glutamine supplementation may be of benefit to the needed structures and functions.

In addition, as noted above, evidence suggests supplemental glutamine may provide benefit for gastrointestinal health, as well as support of wound healing, immune health, and nutrient support of individuals undergoing chemotherapy and radiation.

Suggested Use

Take 1 capsule three times daily or as recommended by your health-care practitioner.

Other Ingredients

Hypromellose (derived from cellulose) capsule, silicon dioxide.


Tamper Evident: Use only if bottle is sealed.

If pregnant, consult your health-care practitioner before using this product.

Store tightly sealed in cool, dry place.

Supplement Facts
Serving Size: One Capsule
Each Capsule Contains: Amount Per Serving % DV
L-Glutamine 500 mg *
*Daily Value not established.
iHerb Customer Reviews

Excellent product

Posted by 5227655335893165589 on Dec 10, 2014

I have young cats with digestive problems and this seems to help keep their problems under control. I switched to the Thorne product even though it is more expensive becasue t does not have magnesium stearate in it (which has been shown to intefer with the absorbtion of medications).

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Great product,

Posted by Reviewer2080067 on Nov 01, 2014

Because its a capsule it takes time to take effect, but great!

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L Glutamine

Posted by 5496016835165676726 on Mar 01, 2014

Really helped with the constipation. I feel much better after taking this 3 times a day. Ihave had constipation issues for years. This helps with overall digestion well being.

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Posted by 5241285211926225447 on Aug 12, 2013

Essential if you are trying to repair leaky gut and autoimmune conditions

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incredible healer!

Posted by Reviewer2322255 on Feb 22, 2013

i have crohn's disease and celiac disease, and my naturopathic doctor prescribed these to help heal my intestines - wow what an amazing difference! i am healing, suffering less, and on the road to recovery! (and without the side effects that prednisone or azacol come with)

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