Research
Mixed
Westernized diets high in fat and protein promote the growth of potentially pathogenic bacteria and increase the production of toxic metabolites like hydrogen sulfide and TMAO.
Reducing animal protein and fat can help shift gut bacteria away from pathogenic types that produce harmful metabolites.
GoodSupportsHIGH confidence
Notable differences included higher levels of potentially pathogenic proteobacteria (Escherichia and Acinetobacter) and bile acid deconjugators and their products in Americans
Why this rating
Direct measurement of microbial genes and metabolites.
Source
Fat, fibre and cancer risk in African Americans and rural Africans
Stephen J. O’Keefe et al. · Nature Communications · 2015
DOI 10.1038/ncomms7342
crossover · n=40Cited 967×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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