Research
Macro partitioning
Probiotic supplementation does not significantly reduce fat mass in overweight or obese subjects, despite reducing body weight and fat percentage.
Do not expect probiotics to reduce your body fat. While they might lower your total body weight slightly, the specific reduction in fat mass was not statistically significant in this review.
GoodRefutesMEDIUM confidence
The effect of probiotics on fat mass was non-significant (-0.42 [-1.08, 0.23] kg, I2 = 84%).
Why this rating
Meta-analysis of 7 RCTs, but high heterogeneity (I2=84%).
Source
Effects of probiotics on body weight, body mass index, fat mass and fat percentage in subjects with overweight or obesity: a systematic review and meta‐analysis of randomized controlled trials
Heidi Borgeraas et al. · Obesity Reviews · 2017
DOI 10.1111/obr.12626
Meta-analysis · 15 studiesCited 265×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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