Research
Mixed
High adherence to a Mediterranean diet is associated with increased fecal SCFAs and Prevotella abundance, while low adherence is linked to elevated urinary TMAO and increased cardiovascular risk.
Adopting a Mediterranean-style diet—rich in fiber, polyphenols, and unsaturated fats—supports beneficial bacteria (Prevotella) and reduces harmful metabolites (TMAO). This pattern is linked to lower cardiovascular risk and reduced inflammation.
GoodSupportsHIGH confidence
significant associations between degree of adherence to the Mediterranean diet and increased levels of fecal SCFAs, Prevotella bacteria, and other Firmicutes. At the same time low adherence to the Mediterranean diet was associated with elevated urinary trimethylamine oxide, which is associated with increased cardiovascular risk
Why this rating
Based on cross-sectional and observational studies cited.
Source
Influence of diet on the gut microbiome and implications for human health
Rasnik Singh et al. · Journal of Translational Medicine · 2017
DOI 10.1186/s12967-017-1175-y
narrative_reviewCited 2,580×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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