Amino Acid
L-Glutamine (Gut Repair)
Also known as: Glutamine, L-glutamine
Primary fuel for intestinal cells, essential for gut barrier repair and reducing intestinal permeability.
Daily target & upper limit
5 g / dayL-Glutamine (Gut Repair) has an established daily reference intake. See best forms, label synonyms, upper-limit warnings, and top-scoring supplements:
L-Glutamine (Gut Repair) dosage reference →Primary uses
- Gut barrier repair
- Leaky gut
- IBD support
- Enterocyte fuel
How it works
- Primary fuel for enterocytes
- Supports tight junction integrity
- Reduces intestinal permeability
- Aids mucosal healing
Dosage
- Typical range
- 5-20g daily for gut healing, 2-5g maintenance
- Timing
- Away from protein meals or divided throughout day
- With food
- Either way
- Duration
- High dose 2-3 months for healing, then maintenance
- Special populations
- Leaky gut, IBD, post-antibiotic, athletes
Forms
- Powder
- Capsules
Safety
Common side effects
- Rare at normal doses
Contraindications
- Hepatic encephalopathy
- Severe liver disease
Products containing L-Glutamine (Gut Repair)
Top-scoring supplements in our catalog that list L-Glutamine (Gut Repair) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Strong evidence for gut barrier support
Grade A: Multiple well-designed human trials support the main claims.
Cited research for L-Glutamine (Gut Repair)
Clinical studies referenced across Formulate guides that mention l-glutamine (gut repair). Each links to the full study page with PubMed source + the guides that cite it.
Related in Amino Acid
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Open the checkerMedical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.