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Evidence-Based Supplement Research
Evidence-Based Supplement Research

Lactobacillus rhamnosus and Reduced Oxidative Stress

Research synthesisLow evidenceModerate effect5 studies · 5 beneficial · 0 neutral · 0 harmful

Across 5 studies (all beneficial), moderate effects on reducing oxidative stress were observed in animal and cell models. No human studies were identified. The predominant effect size was moderate, but only 2 of 5 studies reported statistically significant results.

Caveats: All studies are preclinical (animal or cell models) — human evidence is lacking. 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). Additionally, many of the included studies did not reach statistical significance — effect may be smaller than the predominant direction suggests.

Generated Jul 11, 2026
5 of 5 papers
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