L-Glutamine Powder NSF Certified (18.1 oz) — Gut Integrity, Immune & Muscle Recovery Support
L-Glutamine Powder NSF Certified (18.1 oz) provides pure, pharmaceutical-grade L-glutamine — the most abundant amino acid in the bloodstream and the primary fuel for intestinal cells. Glutamine is essential for maintaining gut barrier integrity, supporting immune function, and promoting muscle recovery after intense exercise or illness. This NSF-certified formula ensures purity and safety in every serving.
Key Benefits
- Supports gut barrier integrity and healing of intestinal lining (leaky gut)
- Primary fuel source for intestinal enterocytes and immune cells
- Supports immune function during physical stress, illness, or recovery
- Promotes muscle recovery and reduces exercise-induced muscle breakdown
- NSF Certified — third-party verified for purity and quality
- Large 18.1 oz supply — economical for long-term gut healing protocols
Who Should Take L-Glutamine?
L-Glutamine is especially beneficial for individuals with leaky gut syndrome, IBS, Crohn's disease, ulcerative colitis, food sensitivities, or intestinal permeability issues. It is also valuable for athletes needing muscle recovery support, and for anyone recovering from surgery, illness, or significant physical stress. Recommended by Michelle Tonkin ND as a foundational gut healing nutrient.
Frequently Asked Questions
Q: Can L-Glutamine help with leaky gut?
A: Yes — glutamine is the primary fuel for intestinal epithelial cells and is one of the most evidence-supported nutrients for repairing intestinal permeability. It is a cornerstone of most gut healing protocols.
Q: How much should I take?
A: Therapeutic doses for gut healing typically range from 5–30g per day. Your practitioner can guide you on the optimal dose for your specific condition.
Q: Why NSF Certified?
A: NSF Certification provides independent verification of purity, potency, and absence of banned substances — ensuring you get exactly what's on the label without contaminants.
Best For
L is best for everyday wellness, nutritional gaps, and whole-body health support. It is especially well-suited for individuals seeking a professional, practitioner-vetted supplement as part of a holistic wellness routine.
How to Use
Take as directed on the label or by your healthcare practitioner. Always follow the label directions or guidance from your healthcare provider. Do not exceed the recommended dose.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

