Research
Mixed
A low-fat vegan diet increases the relative abundance of Faecalibacterium prausnitzii and preserves Bacteroides fragilis levels compared to a control diet, and these microbial shifts correlate with greater weight loss and improved insulin sensitivity.
Eating a low-fat vegan diet changes your gut bacteria in ways that support weight loss. Specifically, it increases Faecalibacterium prausnitzii and helps maintain Bacteroides fragilis, both of which are linked to better insulin sensitivity and fat loss.
GoodSupportsHIGH confidence
The relative abundance of Faecalibacterium prausnitzii increased in the vegan group (+5.1% [95% CI, +2.4 to +7.9%]; p < 0.001) and correlated negatively with changes in weight (r = −0.24; p = 0.01)... The relative abundance of Bacteroides fragilis decreased in both groups, but less in the vegan group, making the treatment effect positive (+18.9% [95% CI, +14.2 to +23.7%]; p < 0.001)... a smaller reduction in Bacteroides fragilis was associated with a greater loss of body weight... and a greater increase in insulin sensitivity.
Why this rating
Randomized clinical trial with microbiome sequencing.
Source
Effects of a Low-Fat Vegan Diet on Gut Microbiota in Overweight Individuals and Relationships with Body Weight, Body Composition, and Insulin Sensitivity. A Randomized Clinical Trial
Hana Kahleová et al. · Nutrients · 2020
rct · n=168Cited 116×
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