Clinical research on **L-Glutamine** for gut health and immune support uses 5–15g per day — and getting there with this product takes real commitment. Each serving is three capsules delivering 1,500mg, with a suggested use of up to three servings daily. At maximum intake (nine capsules), you're at 4,500mg, which still falls just short of the 5,000mg clinical minimum.
The free-form L-Glutamine used here is the standard supplemental form with good absorption. No fillers or extras — just the amino acid in vegetable capsules, which keeps it straightforward if you're adding it to your daily routine.
The real tradeoff is pill burden versus dose. Nine capsules a day to approach a clinical dose is a lot to keep up with. If gut support or recovery is your goal, a powder format would let you hit effective doses far more practically.
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Every active here is dosed below the amount studied to work. See how each one compares in the breakdown below.
What it does
Glutamine
Form not confirmedGrade —
Supports normal nitrogen metabolism; extra glutamine has not consistently improved exercise performance or muscle growth.
Ingredients (1)
Other ingredients
Magnesium StearateLubricant
A salt of stearic acid used as a lubricant in tablet and capsule production
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Stearic AcidLubricant
Saturated fatty acid used as tablet lubricant
Microcrystalline CelluloseBinder
Plant-derived cellulose used as a binder and filler in supplements
Lab testing
How to take it
On an empty stomach
On the label
Suggested Use: As a dietary supplement for adults, take three (3) vegetable capsules up to three times daily, between meals or as directed by a healthcare practitioner.
Price check
$13.49
Cheaper than 81% of 74 glutamine supplements
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Sources & Scoring
Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the National Academies Dietary Reference Intakes (DRI).
This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.
The score analyzes what's on the label: ingredient doses vs. studied ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.
Not medical advice. Consult your healthcare professional.