People mainly take Glutamine for digestion, recovery. Based on 43 first-hand reports and 361 meta-analyses & systematic reviews in the medical literature. Ranked #292 of 1,974 overall.
Of reports that state an outcome, 50% are positive.
Of the people who reported each effect, the share who said it got better.
Systematic reviews and meta-analyses from PubMed, with their published conclusions.
3+ meta-analyses or systematic reviews and 10+ randomized controlled trials in humans. The grade measures how much human research exists — read the conclusions below for what it found.
Conclusion: In studies using high-throughput metabolomics, several blood amino acids appear to be consistently associated with the risk of developing type 2 diabetes.
PubMed 27208380 ↗Conclusion: Nutritional intervention with perioperative immunonutrition in patients with HAN and GI cancers significantly reduced total postoperative complications and infectious complications.
PubMed 37882375 ↗Conclusion: Regarding T-cell lymphocytes, a slight decrease was observed, although it failed to reach significance (MD: -0.16, 95% CI: -0.33, 0.01, p = 0.07). Conclusion: The wound healing might be enhanced in one or at various stages by nutritional supplementation in the right dose.
PubMed 34444657 ↗Conclusion: Several plasma and serum metabolites, including amino acids, lipids, and carbohydrates, are associated with type 2 diabetes risk.
PubMed 35349649 ↗As stated by users — not a recommendation. Follow the label or your doctor.
How often each side effect came up across all reports.
Verbatim quotes, shortened only — each links to the original discussion.
“Whey protein shake with creatine and glutamine after a workout”
“Glutamine and other supplements combined with low FODMAP can effectively heal even the most stubborn dysbiosis.”
“amino acids L carnitine and glutamine made a difference in my skin.”
“glutamine 2g”
“I have definitely been improving in that area. I have been noticing that I can better understand what someone might be thinking”
User data from public discussions; research from PubMed. Information only, not medical advice — talk to a doctor before starting, stopping or combining anything. Data updated October 2, 2026. How we rate