EPA (Eicosapentaenoic Acid) — answers to an omega-3 fatty acid
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A long-chain omega-3 fatty acid found in fatty fish and fish oil supplements, typically paired with DHA.
Why it’s used
Taken to support cardiovascular health, particularly to help manage triglyceride levels.
What the evidence is for
lowering triglyceride levels, particularly at higher doses.
What the evidence says
NIH ODS notes combined EPA and DHA supplementation lowers triglycerides at higher doses. Prescription-strength, EPA-only formulations have shown reductions in cardiovascular events in specific high-risk groups in clinical trials, but general over-the-counter supplement doses have less consistent supporting evidence for broader cardiovascular outcomes.
Dose studied
2–4 g — combined EPA+DHA or EPA-only doses studied for triglyceride lowering.
Context
Trials showing cardiovascular benefit have generally used prescription-level EPA doses around 4 g/day; typical over-the-counter fish oil supplements provide considerably less.
Educational information, not medical or safety advice. Consult a professional for allergies or medical concerns.