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Evidence-Based Supplement Research
Evidence-Based Supplement Research

saccharomyces boulardii and Reduced Abdominal Distension

Research synthesisModerate evidenceLarge effect3 studies · 3 beneficial · 0 neutral · 0 harmful

Across 3 meta-analyses, all reported beneficial effects of Saccharomyces boulardii supplementation on reducing abdominal distension, with effect sizes ranging from moderate to large. The evidence is primarily from patients with Helicobacter pylori infection, with doses of 500–1000 mg/day reported in one study. The predominant effect size is large.

  • Studied populations: patients with Helicobacter pylori infection (children and adults)

Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. Available evidence is overwhelmingly positive — clinical literature in this area is subject to publication bias. All studies were conducted in patients with H. pylori infection — benefit may not generalize to other causes of abdominal distension.

Generated Jul 9, 2026
Doses used in studies
  • mg/day: 500–1,000 (median 750, IQR 5001,000) 1 study
Safety in these studies
3 of 3 papers
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