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Evidence-Based Supplement Research
Evidence-Based Supplement Research

saccharomyces boulardii and Reduced Constipation

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

Across 3 studies, all 3 reported statistically significant beneficial effects of Saccharomyces boulardii on reducing constipation, with predominantly large effect sizes (risk ratios of 0.35–0.38). Evidence comes from meta-analyses of clinical populations undergoing Helicobacter pylori eradication therapy; no dose or form data were consistently reported, and study durations were not provided.

  • Studied populations: patients with Helicobacter pylori infection

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 (null-result studies are less likely to be published or indexed). All studies were conducted in the context of H. pylori eradication therapy, so generalizability to other populations is uncertain.

Generated Jun 9, 2026
Safety in these studies
3 of 3 papers
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