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Evidence-Based Supplement Research
Evidence-Based Supplement Research
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Lactobacillus acidophilus L-92 and Improved Gut Health

Research synthesisVery low evidenceMixed effect size5 studies · 5 beneficial · 0 neutral · 0 harmful

Across 5 studies (all reviews), all reported beneficial effects on gut health, with effect sizes ranging from small to moderate. The evidence is predominantly from animal and pet studies, with no consistent dose or duration data available. Only 1 study reported a statistically significant finding.

  • Studied populations: animals (poultry, swine, canine, feline, horses, ruminants) and pets (dogs, cats)

Caveats: 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 included studies are reviews, not primary clinical trials in humans, and only 1 of 5 reached statistical significance. Evidence base is small (only 5 studies) — conclusions should be considered preliminary.

Generated Jun 11, 2026
5 of 5 papers
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