Trans fatty acids and cardiovascular disease
In plain English
A definitive synthesis of metabolic trials and large cohorts establishing that industrial trans fats — from partially hydrogenated vegetable oil — are uniquely harmful to the heart. For every 2% of energy taken as trans fat, coronary heart disease risk rose about 23%, a steeper effect than any other type of fat. The authors argued trans fats had no safe level and should be eliminated; the paper became the scientific backbone for the trans-fat bans now adopted across much of the world.
Why it matters
Each 2% of calories from trans fat raised coronary heart disease risk ~23% — with no safe level.
Informs: Heart Disease
Provenance
- Design
- Systematic review
- Sample size (n)
- 140,000
- Peer-reviewed
- Yes
- Replications
- 3
- Funding
- Public / academic
- Funders
- US National Institutes of Health
- Institutions
- Harvard T.H. Chan School of Public Health, Brigham and Women's Hospital, Wageningen University
decades.plus score
A transparent 0–100 weighted sum across six components. Higher scores reflect bigger, cleaner, more replicated work.
Caveats
A review synthesising observational cohorts and short-term metabolic trials rather than a single hard-outcome RCT (which would be unethical to run). The conclusion is unusually settled for nutrition science — and population-wide bans were indeed followed by falling heart-attack rates.
