Research
Macro partitioning
Consuming 2 or more servings of fish per week, or supplementing with omega-3 fatty acids (EPA/DHA or ALA), significantly reduces the risk of coronary heart disease, particularly sudden cardiac death and fatal CHD.
Eat fish at least twice a week. This habit is linked to a 30% lower risk of heart disease. If you don't eat fish, consider fish oil supplements, especially if you have existing heart conditions, as they can reduce sudden cardiac death.
GoodSupportsHIGH confidence
Notably, 2 recent studies have shown that consuming 2 or more servings of fish per week was associated with 30% lower risk of CHD in women... and that blood levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) were strongly associated with decreased risk of sudden cardiac death in men.
Why this rating
Strong evidence from prospective cohorts and clinical trials, though primary prevention trials for supplements are less definitive than secondary prevention.
Source
Optimal Diets for Prevention of Coronary Heart Disease
Frank B. Hu · JAMA · 2002
DOI 10.1001/jama.288.20.2569
narrative_reviewCited 1,509×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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Related findings · Macro partitioning
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