L-Glutamine Capsules
Scored by the Formulate Research Team · Last reviewed July 2026
Score Breakdown
Three factors carry this score; three more are checked separately and can only take points away. Hover or tap to see what drove each one.
Ingredients per Serving
Certifications & Testing
Other Ingredients
Hypromellose, Magnesium Stearate, Microcrystalline Cellulose
Recommended Use
Suggested use: As a dietary supplement, take 1 capsule 1-3 times daily on an empty stomach with 8-12 oz of water or as directed by your healthcare professional.
Warnings
Warning: For healthy individuals 18 years and older. Consult a healthcare professional prior to use if you are pregnant or nursing, taking medication, or have a medical condition. Keep out of reach of children. Do not use if safety seal is broken or missing.
Frequently Asked Questions
What is Nutricost L-Glutamine Capsules's Formulate score?
Nutricost L-Glutamine Capsules scores 83 out of 100 (grade A-) on Formulate's ingredient-level rubric: clinical evidence, dose accuracy and bioavailability carry the score, while manufacturing, transparency and safety are checked separately and can only deduct.
Is Nutricost L-Glutamine Capsules worth it?
Nutricost L-Glutamine Capsules scores 83/100 (grade A-). That puts it in Formulate's top tier: its ingredient doses, forms, and label transparency hold up against the clinical evidence, and it carries credible third-party testing. Formulate grades every product with the same automated rubric, so the score reflects the formula — not marketing or sponsorships.
What's in Nutricost L-Glutamine Capsules?
Each serving contains L-Glutamine (800 mg). Serving size: 1 Capsule(s). 180 servings per container.
How do I take l-glutamine capsules?
Suggested use: As a dietary supplement, take 1 capsule 1-3 times daily on an empty stomach with 8-12 oz of water or as directed by your healthcare professional.
Who makes L-Glutamine Capsules?
L-Glutamine Capsules is made by Nutricost. See Formulate's full grade and product lineup for Nutricost on its brand page.
Is Nutricost L-Glutamine Capsules third-party tested?
Nutricost lists the following certifications and testing for this product: cGMP Certified, FDA Registered, Non-GMO, Gluten-Free, Vegetarian.
Related Supplements
Track l-glutamine capsules in your stack
Build a personalized supplement stack free in your browser — no install. Flag dose overlaps and interactions, and keep every product scored against the latest evidence.
Is L-Glutamine Capsules right for your goals?
Two questions, then every ingredient graded against what you're actually trying to do — plus what it costs per effective dose.
Build my stack2 questions · free · no account needed to start
Also on iPhone — get the free app
Evidence-based supplement guides, no spam
We send a short digest when new guides drop — nothing else. No affiliate pushes, no sponsored content, unsubscribe anytime.
Disclosure. Formulate may earn a commission from purchases made through links on this page. Commissions never influence scores — every product is graded by the same automated rubric. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.