PlainPill

Kefir vs L-Glutamine for digestion

Short answer: For digestion, more users report improvement with Kefir — 100% of 12 reports, versus 90% of 21 for L-Glutamine.

L-Glutamine has 19 meta-analyses and 117 randomized trials on PubMed; the other has not been graded.

Based on 47 reports about Kefir and 86 about L-Glutamine. Not medical advice.

Kefir
Other
L-Glutamine
Supplement
User score4838
Verdict
Mostly positive
Mostly positive
Positive
of reports that state an outcome
94%63%
Reports4786
ResearchResearch pendingAResearch: Strong
Meta-analyses / RCTs—19 / 117
Mainly used for
Focus
% reporting improvement
100% (2)100% (2)
Energy
% reporting improvement
—75% (4)
Sleep
% reporting improvement
—50% (2)
Anxiety
% reporting improvement
100% (2)60% (10)
Mood
% reporting improvement
100% (8)89% (9)
Performance
% reporting improvement
—50% (2)
Recovery
% reporting improvement
—80% (5)
Digestion
% reporting improvement
100% (12)90% (21)
Libido
% reporting improvement
—100% (2)
Common side effectsstomach issues, nausea, irritationanxiety, stomach issues, weird feeling, glutamate spikes
Typical dose reporteddaily5 g
Kefir
What a user said
“The first time I tried Kefir it felt like a drug. I really felt it get to my stomach and it felt great. Now when I have it, it can cheer me up”
Full Kefir profile →
L-Glutamine
Latest review 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.

Acta Odontol Latinoam, 2023 ↗
What a user said
“Ashwaghanda, Phosphatidylserine, L-Glutamine, Probiotics, CurcuBrain (Longvida) etc. most of them didn't provide any meaningful and noticeable benefits”
Full L-Glutamine profile →

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Percentages come from first-hand user reports and are not clinical outcomes. Talk to a doctor before starting, stopping or combining anything. How we rate