Comparative Efficacy of Probiotics for the Treatment of Obesity: A Systematic Review and Network Meta-analysis
Certain multi-strain probiotic combinations produced modest weight loss (~2.8 kg), suggesting they may complement—not replace—proven weight-loss medications.
This 47-RCT network meta-analysis (n=3555) found that specific multi-genus probiotic combinations — particularly Mix10 — achieved meaningful weight reduction (~2.83 kg vs placebo) in obesity. The evidence quality is low-to-moderate and effects are modest; findings suggest combination probiotics may be complementary to, not substitutes for, established cardiometabolic therapies like GLP-1 agonists.
What the study was
- Study design
- Network meta-analysis (GRADE framework) of 47 RCTs
- Population
- Adults with obesity; 47 RCTs, n=3555 participants
- Sample size
- 3555
- Category
- Treatment Innovation
- Maturity
- Validated
- Journal
- Nutrition Reviews
Why it surfaced
Largest network meta-analysis to date on probiotic formulations in obesity, enabling comparative ranking of 26 interventions. Evidence is low-to-moderate certainty; weight effects are modest (~2.83 kg) but statistically significant and could inform adjunct strategies. GRADE evaluation adds rigor.
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