- Amino Acid Supplementation – Glutamine is produced by the body, but supplementation may address a variety of needs in already healthy individuals.*
- Support Gut Health – L-Glutamine is most notable for its gastrointestinal-supportive properties and may support everyday discomforts.*
- Encourage Gultamine Replenishment – Elevated cortisol levels can contribute to depleted glutamine levels.*
- Purity, Quality, Potency – No fillers, binders, preservatives, artificial colors or flavors. Vegetarian capsules. No gluten, egg, peanuts, tree nuts, or magnesium stearate. Supplements arrive in BPA-Free, recycled amber bottles.
- Physician’s Choice – The health care professional’s choice for high-quality supplements since 1984. We base our products on the latest wellness research and clinical studies, and use third-party testing for all incoming, in-process, and finished product. Products you can trust, at an exceptional value.
From the brand
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Practitioner Trusted + Family Owned
Metabolic Maintenance is a practitioner-trusted company with close to four decades of experience in high-quality supplements. Always USA manufactured with local and globally sourced ingredients.
Rigorous Testing for Purity + Potency
Metabolic honors label potency with supplements that last. Product purity is always verified by independent, third-party testing.
Why Glass Bottles?
Amber glass bottles reduce UV interaction with our supplements. Using glass instead of plastic decreases the risk of chemicals leaching into your supplements, and into the environment.
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Only Pure Ingredients
Every ingredient matters- this is why we have remained steadfast in producing pure, preservative-free products with no added excipients, fillers, or binders.
No Filler, All Actives
All ingredients should have a purpose, so instead of stearates, silicon, or ‘clean’ fillers like starches or rice bran, Metabolic uses beneficial ingredients like amino acids, vitamin C, or nothing at all!
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Product Description
Glutamine is the most abundant amino acid in the bloodstream. It is most notable for its gastrointestinal-supportive properties and may provide support for everyday discomforts.*