Heart failure
Do omega-3s improve outcomes in people with heart failure?
Trials have studied omega-3s as an addition to usual heart-failure care. A recent synthesis found improvements in some heart-function measures, without a significant all-cause mortality difference.
Updated September 24, 2026 · Editorial attribution: PV Griscom, M.Sc. · Independent clinical review pending
The question behind the headline
People with heart failure; 14 trials in a 2025 network meta-analysis.
What the finding does—and doesn’t—tell us
Indirect comparisons cannot establish an optimal regimen. Ejection fraction is not the same outcome as living longer or avoiding hospitalization.
Read the underlying research.
Selected sources, not an exhaustive reference list. Research record or abstract screening only; full-text efficacy appraisal is pending. Source publication dates may precede this page’s update date.
Three questions to take forward
- Was the study population similar to the person or situation I have in mind?
- Did it measure an outcome people feel or experience, or only a laboratory marker?
- How do formulation, usual care, absolute benefit and adverse effects change the interpretation?
Study doses describe experiments; they are not personal dosing advice. Explore safety and limitations ↗