Research
Adherence
A standard lifestyle intervention (diet and exercise) does not significantly reduce mean serum TMAO levels, even though it improves other cardiovascular risk factors like cIMT, insulin sensitivity, and liver fat.
Even if your TMAO levels don't drop after 9 months of healthy eating and exercise, keep going. You are still improving your insulin sensitivity, liver fat, and artery health. TMAO might be resistant to standard lifestyle changes, but the overall benefit is real.
GoodRefutesMEDIUM confidence
While during the lifestyle intervention most cardiovascular risk parameters improved, mean TMAO levels did not change (p = 0.18).
Why this rating
Longitudinal data with a controlled intervention, but the lack of change in TMAO makes causal inference difficult.
Source
Relationship of Serum Trimethylamine N-Oxide (TMAO) Levels with early Atherosclerosis in Humans
Elko Randrianarisoa et al. · Scientific Reports · 2016
DOI 10.1038/srep26745
cohort · n=220Cited 296×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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