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Omega-3 Index and Healthy Aging: EPA, DHA, and Cardiometabolic Risk

Omega-3 index, EPA, and DHA: learn the clinical significance of this biomarker in the context of nutrition, triglycerides, cardiometabolic risk, and healthy aging.

Written by: Dr. Kerem Çağlayan Medically reviewed by: Dr. Kerem Çağlayan First published: September 13, 2026 Last updated: September 29, 2026
Omega-3 Index and Healthy Aging: EPA, DHA, and Cardiometabolic Risk
Short answerThe Omega-3 index is a biomarker that reflects the proportion of EPA and DHA in erythrocyte membranes. It can provide additional information regarding dietary habits and omega-3 status; it is not a standalone cardiovascular risk test or treatment target.

Why are EPA and DHA important?

EPA and DHA play a role in cell membranes, triglyceride metabolism, and inflammatory signaling pathways. In individuals with low fish consumption or specific cardiometabolic risks, omega-3 status can be included in the clinical evaluation.

How is the Omega-3 index interpreted?

The result should be evaluated alongside factors such as diet, supplement use, lipid profile, triglyceride level, medications, and bleeding risk. A single target range should not be automatically applied to every patient.

Is supplementation necessary?

The priority is diet. The decision to supplement is made based on individual risk, consumption habits, and clinical goals. Physician evaluation is important for those using anticoagulant or antiplatelet medications, those with planned surgery, and in high-dose use.

Our approach at our Bodrum clinic

We evaluate omega-3 status within the context of the lipid profile, ApoB/Lp(a), triglyceride/HDL ratio, nutrition, and overall cardiometabolic risk. The goal is not to optimize a single laboratory value, but to improve the total risk profile.

ApoB and Lp(a) → · Main longevity guide →

Last medical review: September 13, 2026

Medical editorial information

This content has been medically reviewed and approved by Dr. Kerem Çağlayan. It is intended for general education and does not replace an individual diagnosis or treatment plan.

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