Skip to main content
Evidence-Based Supplement Research
Evidence-Based Supplement Research
Pillser
Search
Sign UpLog In
Big effect

Probiotics cut IBS intestinal discomfort by 94 points in meta-analysis — but the benefit depended on the specific strain

This is among the first large analyses to quantify the effect, but the evidence for individual strains like Bifidobacterium plantarum is still emerging, so treat the overall estimate with caution.

A meta-analysis of 16 trials found that probiotics reduced IBS intestinal discomfort scores by an average of 94 points and raised the odds of overall symptom improvement by 71% compared to placebo. However, the analysis combined multiple strains, so the effect may vary. Quality of life also improved, and side effects were no different from placebo.

Where this fits in the evidence

This is among the first studies we've indexed on Bifidobacterium plantarum for Improved Irritable Bowel Syndrome Symptoms — treat it as an early signal until more research accumulates.

The study

Efficacy of Specific Probiotic Strains in Subtypes of Irritable Bowel Syndrome: Systematic Review and Meta-Analysis of Randomized Controlled Trials.

  • Meta-Analysis
  • 2025-12-31
  • Medicina (Kaunas, Lithuania)
More on Bifidobacterium plantarumMore on Improved Irritable Bowel Syndrome Symptoms

This is a plain-language summary of a research finding, not medical advice. Pillser surfaces research signals to help you decide what's worth investigating — always consult a qualified professional before changing what you take.

Back to top