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Evidence-Based Supplement Research
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Bifidobacterium animalis subsp. lactis LAFTI B94 and Reduced Gastrointestinal Symptoms

Research synthesisLow evidenceModerate effect3 studies · 3 beneficial · 0 neutral · 0 harmful

Across 3 studies (all reviews), 3 reported beneficial moderate-to-small effects of Bifidobacterium animalis subsp. lactis LAFTI B94 on reducing gastrointestinal symptoms in athlete or recreatively active populations. The predominant effect size is moderate, though one review reported a small effect. No dose or form data were reported, and study durations were not consistently available.

  • Studied populations: athletes and recreationally active adults

Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. All studies were reviews, not original RCTs, and effect sizes were not statistically tested. 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).

Generated May 12, 2026
3 of 3 papers
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