How Probiotics Impacted Body Weight

Sep 4, 2026

Here’s What Happened to Body Weight in the Trials: When researchers pooled all 20 studies together, probiotic supplementation did not significantly reduce total body weight. The scale, on average, didn’t move in a meaningful way. But that’s not the whole story. Even If the Scale Didn’t Drop, Some Important Measurements Did Improve Even though body weight didn’t drop significantly, other measures showed modest but statistically significant improvements. Participants taking probiotics had reductions in body mass index (BMI), waist circumference, and hip circumference.

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