General Dosage
5-10 g daily, taken post-exercise or split into multiple doses
Maximum dose: 30 g/day in divided doses; well tolerated even at high doses in clinical settings
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 post-exercise or split into multiple doses
Timing: Take within 30 minutes post-exercise for immune support; split doses throughout the day for gut health
Dosage by Condition
| Condition | Recommended Dose | Evidence |
|---|---|---|
| Immune support (endurance athletes) | 5 g post-exercise | Moderate |
| Gut health / intestinal permeability | 10-20 g/day in divided doses | Moderate |
| Muscle recovery | 5-10 g post-workout | Emerging |
Upper limit: 30 g/day in divided doses; well tolerated even at high doses in clinical settings
Timing & Absorption
Take within 30 minutes post-exercise for immune support; split doses throughout the day for gut health
Can be taken with or without food.
References
- Castell LM, Poortmans JR, Newsholme EA (1996). Does glutamine have a role in reducing infections in athletes?. European Journal of Applied Physiology. DOI PubMed
- Candow DG, Chilibeck PD, Burke DG, et al. (2001). Effect of glutamine supplementation combined with resistance training in young adults. European Journal of Applied Physiology. DOI PubMed
- 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