PlainPill

Glutamine vs Probiotics for digestion

Short answer: For digestion, more users report improvement with Glutamine — 100% of 11 reports, versus 84% of 86 for Probiotics.

Glutamine has 361 meta-analyses and 787 randomized trials on PubMed; Probiotics has 2,293 and 2,235.

Based on 146 reports about Glutamine and 479 about Probiotics. Not medical advice.

Glutamine
Supplement
Probiotics
Supplement
Users say it helped37%helped55 reports · medium confidence63%helped144 reports · high confidence
Verdict
Mixed
Mostly positive
ResearchAResearch: StrongAResearch: Strong
Meta-analyses / RCTs361 / 7872,293 / 2,235
Mainly used for
Digestion
% reporting improvement
100% (11)84% (86)
Mood
% reporting improvement
67% (3)100% (54)
Anxiety
% reporting improvement
100% (4)90% (29)
Energy
% reporting improvement
100% (4)80% (10)
Focus
% reporting improvement
100% (2)70% (10)
Common side effectsurine odor, headache, vivid dreams, stomach issuesstomach issues, brain fog, diarrhea, withdrawal
Typical dose reported5 mg / before bed2 capsules / daily
Glutamine
Latest review conclusion

In studies using high-throughput metabolomics, several blood amino acids appear to be consistently associated with the risk of developing type 2 diabetes.

Diabetes Care, 2016 ↗
What a user said
“amino acids L carnitine and glutamine made a difference in my skin.”
Full Glutamine profile →
Probiotics
Latest review conclusion

Some combinations of probiotics or strains may be beneficial in IBS. However, certainty in the evidence for efficacy by GRADE criteria was low to very low across almost all of our analyses.

Gastroenterology, 2023 ↗
What a user said
“What finally made a difference was taking probiotics...I felt better fairly quickly.”
Full Probiotics profile →

Related comparisons

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