Research

Mixed

Higher circulating levels of the trans-fatty acid isomer trans/cis-18:2 (t/c-18:2) are associated with increased total mortality and coronary heart disease (CHD) incidence, but only after mutual adjustment for other TFA subtypes.

The isomer t/c-18:2 is linked to higher heart disease risk, particularly when other trans fats are accounted for. Since industrial trans fats (partially hydrogenated oils) are a major source of various trans isomers, avoiding these processed foods helps minimize exposure to potentially harmful isomers like t/c-18:2.

GoodQualifiesMEDIUM confidence
t/c-18:2 was positively related to total mortality (HR=1.19, P-trend=0.05), total CHD (HR=1.67, P-trend=0.002), and nonfatal CHD (HR=2.06, P-trend=0.002) after mutual adjustment; these associations were insignificant without mutual adjustment.
Qianyi Wang et al. · Journal of the American Heart Association · 2014

Why this rating

Same high-quality cohort design as N1, but the finding is sensitive to model specification (mutual adjustment).

Source

Plasma Phospholipid <i>Trans</i> ‐Fatty Acids Levels, Cardiovascular Diseases, and Total Mortality: The Cardiovascular Health Study

Qianyi Wang et al. · Journal of the American Heart Association · 2014

DOI 10.1161/jaha.114.000914

cohort · n=2742Cited 52×
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DOI resolved against Crossref · corpus check 2026-06-10

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