Conclusion: Dentoxol mouthwashes, Plantago major extract, thyme honey extract, zinc oxide paste, vitamin B complex combined with GeneTime, and the consumption of L-glutamine are effective in diminishing the severity of OM. Pain intensity was lower with doxepin mouthwashes and diphenhydramine-lidocaine-antacid mouthwashes.
PubMed 37314054 ↗L-Glutamine
People mainly take L-Glutamine for digestion, anxiety, mood. Based on 86 first-hand reports and 19 meta-analyses & systematic reviews in the medical literature. Ranked #329 of 2,750 overall.
Of reports that state an outcome, 63% are positive.
What L-Glutamine does, according to users
Of the people who reported each effect, the share who said it got better.
What the research says
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: A meta-analysis sensitivity approach found multiple-strain (but not single-strain) probiotics to be highly effective in reducing NEC and mortality. Thus, selected food components may help to improve outcomes in preterm infants.
PubMed 31645057 ↗Conclusion: This review summarizes potential biomarkers and metabolic pathways, providing insights into new pathogenic pathways for this microvascular complication of diabetes.
PubMed 34347011 ↗Conclusion: The greater satiating efficacy of LEU versus PHE was significantly dissociated from the effects of these AAs on PYY, while the greater satiating potency of TRP versus PHE was significantly dissociated from the effects of these AAs on insulin and glucagon. In contrast, ghrelin and CCK, and potentially other mechanisms, including central sensing of individual AAs, appear to be stronger candidate mechanisms for the relative satiating effects obtained.
PubMed 29138359 ↗Dosage people report
As stated by users — not a recommendation. Follow the label or your doctor.
Reported side effects
How often each side effect came up across all reports.
What users say
Verbatim quotes, shortened only — each links to the original discussion.
“Ashwaghanda, Phosphatidylserine, L-Glutamine, Probiotics, CurcuBrain (Longvida) etc. most of them didn't provide any meaningful and noticeable benefits”
“Some natural L-glutamin form along with Vitamin U”
“20g L-Glutamine (5g per serving during the day)”
“Feeling a lot better after taking a bunch of glutamine today, probably 10-15g.”
“L-glutamine”
Top discussions (5)
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- The oral bioavailability of EVERY nootropic (84+) ↗
- Staying motivated is linked to the ratio of neurotransmitters glutamine and glutamate, according to neuroscientists at EPFL and the University of Edinburgh ↗
L-Glutamine compared
Other options for digestion
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 3, 2026. How we rate