EPA (Eicosapentaenoic Acid)
Here’s what it reflects — and what to do about it.
Longetic pulls together every lab and record you’ve had, follows how EPA (Eicosapentaenoic Acid) changes over time, and explains what’s shifting — so you walk into your next appointment prepared, with reminders for retests along the way.
What is EPA (Eicosapentaenoic Acid)?
One of the main marine omega-3 fatty acids, measured here as a share of the fatty acids in your blood.
EPA is an omega-3 fatty acid found mainly in oily fish and fish-oil supplements, and this test reports it as a percentage of your total fatty acids. It is often measured alongside DHA and the omega-3 index to get a sense of your omega-3 status. Higher levels generally reflect a diet richer in seafood or supplements, and EPA is studied in heart and inflammation research; it is an optional, extended marker rather than a routine screening test.
What to know about EPA (Eicosapentaenoic Acid)
Understanding EPA (Eicosapentaenoic Acid) means knowing what it reflects, what tends to move it, and the signs that suggest it’s worth a closer look — so you can bring the right questions to your next appointment.
This glossary entry is for informational purposes only and is not a substitute for professional medical advice. Read our Medical Disclaimer.
References
About our sources
Official sources
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Clinical / professional
Medical societies, specialty colleges, and professional associations whose consensus statements reflect clinical practice standards.
Peer-reviewed research
Original research articles and systematic reviews published in indexed journals and verified through PubMed or DOI.