Lipid panel
EPA
LOINC 90912-7 · %
What it is
EPA (eicosapentaenoic acid) is a long-chain omega-3 fatty acid, reported as a percentage of blood fatty acids. It is best known for its anti-inflammatory roles.
Why it matters
EPA levels reflect omega-3 intake and are widely studied in relation to heart health and inflammation.
What high values can mean
A higher percentage usually reflects a good omega-3 intake and is generally regarded as favourable.
What low values can mean
A lower percentage often reflects limited oily-fish or omega-3 supplement intake.
How to improve it
Eating oily fish regularly, or supplementing under guidance, typically raises EPA.
Food & lifestyle
Salmon, sardines, mackerel, anchovies and fish-oil supplements are the richest EPA sources.
Preparing for the test
Part of a fatty-acid (omega) profile; fasting is usually not required — follow your lab's instructions.
When to talk to a doctor
Discuss with a clinician when addressing cardiovascular risk or high triglycerides.
Related markers
Sources
- NIH Office of Dietary Supplements
- Testing.com (AACC)
Content reviewed on June 26, 2026
Medical disclaimer
This content is for educational purposes only. It is not medical advice and does not diagnose, treat, or prevent any condition. Reference ranges vary between laboratories — always use the range printed on your report and discuss your results with a healthcare professional.
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