General Dosage
5-10 g daily, taken in divided doses or post-workout
Maximum dose: 40 g/day has been used in clinical settings; 20 g/day is a typical upper dose for supplements
L-Glutamine Dosage Guide
This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer
Dosage Recommendations
General recommendation: 5-10 g daily, taken in divided doses or post-workout
Timing: Can be taken any time; post-workout or divided throughout the day
Dosage by Condition
| Condition | Recommended Dose | Evidence |
|---|---|---|
| Gut barrier support | 5-10 g daily in divided doses | Moderate |
| Exercise recovery | 5-10 g post-workout | Emerging |
| Immune support | 10-20 g daily during illness/stress | Moderate |
Upper limit: 40 g/day has been used in clinical settings; 20 g/day is a typical upper dose for supplements
Timing & Absorption
Can be taken any time; post-workout or divided throughout the day
Can be taken with or without food.
References
- Novak F, Heyland DK, Avenell A, et al. (2002). Glutamine supplementation in serious illness: a systematic review of the evidence. Critical Care Medicine. DOI PubMed
- van der Hulst RR, von Meyenfeldt MF, van Kreel BK, et al. (1993). Glutamine and the preservation of gut integrity. The Lancet. DOI PubMed