L-Glutamine

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Support muscle growth and recovery with Swanson L-Glutamine. Glutamine is the most abundant free amino acid found in the muscles of the body. It may also minimize muscle breakdown and improve protein metabolism. Supporting muscle health and strength promotes joint comfort which is key to mobility and healthy aging.

A versatile amino acid, glutamine may also benefit cognitive function and brain health. It is able to cross the blood-brain barrier and acts as a precursor to important neurotransmitters such as glutamate, aspartate and GABA.

Glutamine also provides fuel for immune cells through its activity in the gut where it may help maintain intestinal barrier function to promote GI tract integrity. Since a solid 70% of your immune system stems from your gut, keeping your digestive system happy is a win for your immune function as well.

Glutamine aids in the production of glutathione, often called the “master antioxidant.” Antioxidants help the body combat oxidative stress caused by free radicals which can in turn support the health of cells and bodily systems as we age.


Supplement Facts

Serving Size 1 Vegan Capsule

Servings Per Container 100

Amount Per Serving % Daily Value
L-Glutamine FCC 500 mg *

*Daily Value not established.

Other Ingredients: Vegan capsule (hypromellose), rice flour, magnesium stearate, silica.

Suggested Use: As a dietary supplement, take one vegan capsule one to two times per day with water on an empty stomach or as recommended by your healthcare provider.

Warning: For adults only. Consult your healthcare provider before using this or any product if you are pregnant or nursing, taking medication or have a medical condition.

Storage Instructions: Keep out of reach of children. Do not use if seal is broken. Store in a cool, dry place.




  1. What are the benefits of taking L-glutamine supplements?
    L-glutamine is the most abundant amino acid in the body and plays an important role in muscle tissue, digestive health, and immune function. Swanson L-Glutamine provides 500 mg of this conditionally essential amino acid per capsule to support muscle recovery after exercise, healthy intestinal function, and overall wellness. It is an excellent addition to an active lifestyle or fitness routine.
  2. How does L-glutamine support muscle recovery?
    L-glutamine is involved in protein metabolism and serves as a key fuel source for muscle cells during periods of physical stress. Following exercise, glutamine levels may temporarily decrease, making adequate intake important for supporting muscle recovery and maintaining lean muscle tissue. Swanson L-Glutamine helps support post-workout recovery and healthy muscle function when combined with regular exercise and a balanced diet.
  3. How does L-glutamine support digestive health?
    L-glutamine is a preferred energy source for the cells that line the intestinal tract and plays an important role in maintaining the integrity of the intestinal lining. Supplementing with L-glutamine helps support healthy digestive function and intestinal barrier health, making it a popular choice for individuals looking to promote gastrointestinal wellness as part of a healthy lifestyle.
  4. Can L-glutamine help support immune health?
    Yes. L-glutamine serves as an important fuel source for certain immune cells and helps support normal immune function, particularly during periods of intense physical activity or other physiological stress. Swanson L-Glutamine provides nutritional support for a healthy immune system while also promoting muscle and digestive health.
  5. When is the best time to take Swanson L-Glutamine?
    Swanson L-Glutamine can be taken daily as directed on the product label. Many active individuals choose to take L-glutamine after exercise to support muscle recovery, while others take it between meals or as part of their daily wellness routine. Consistent use, along with a balanced diet and regular physical activity, can help support muscle, digestive, and immune health.
  6. Is Swanson L-Glutamine suitable for special diets?
    Yes. Swanson L-Glutamine is vegan, non-GMO, dairy free, and gluten free, making it an excellent choice for individuals following a variety of dietary lifestyles. Each capsule provides 500 mg of L-glutamine, a conditionally essential amino acid that supports muscle recovery, digestive health, immune function, and overall wellness. As always, review the Supplement Facts and ingredient list to ensure the product meets your individual dietary needs and preferences.


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