Best Supplements for Improved Gut Microbiota Balance
Ranked by research evidence. Compare 39 supplements across 60 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.
Top picks by evidence
- Low evidence7 studies
Across 6 studies (all reviews), 6 out of 6 report beneficial effects of Bifidobacterium plantarum on gut microbiota balance, with effect sizes predominantly moderate. No doses, forms, or study durations were reported in the available evidence. The evidence comes entirely from narrative or scoping reviews, most published in 2025–2026, covering diverse populations including CKD patients, individuals with obesity, and livestock.
- Very low evidence6 studies
Across 6 review studies, all 6 reported beneficial effects of Lactobacillus acidophilus L-92 on gut microbiota balance, with effect sizes ranging from small to moderate (predominantly moderate). Most studies were general reviews without reported doses, durations, or specific populations, and none reported statistical significance.
- LowBifidobacterium plantarumAcross 6 studies (all reviews), 6 out of 6 report beneficial effects of Bifidobacterium plantarum on gut microbiota balance, with effect sizes predominantly moderate. No doses, forms, or study durations were reported in the available evidence. The evidence comes entirely from narrative or scoping reviews, most published in 2025–2026, covering diverse populations including CKD patients, individuals with obesity, and livestock.7 beneficial7 studies
- Very lowLactobacillus acidophilus L-92Across 6 review studies, all 6 reported beneficial effects of Lactobacillus acidophilus L-92 on gut microbiota balance, with effect sizes ranging from small to moderate (predominantly moderate). Most studies were general reviews without reported doses, durations, or specific populations, and none reported statistical significance.6 beneficial6 studies