--- title: Omega-3 Index Test type: biomarker url: "https://www.test-well.com/biomarkers/omega-3-index" also_known_as: - omega-3 index - omega-3 index (%) - omega 3 index category: Heart Health units: - "%" order_price_usd: 69.99 order_item: Omega-3 Index order_url: "https://www.test-well.com/tests/omega-3-index" reviewed_at: 2026-09-05 --- # Omega-3 Index > Omega-3 Index is measured with a standard blood draw; no fasting is needed. A typical reference range is 8.00 – 12.0 %. At TestWell it's $69.99 all-in as Omega-3 Index, results in 7–10 business days, drawn at Quest. An out-of-range result is a prompt to look closer, not a diagnosis. Also known as: omega-3 index, omega-3 index (%), omega 3 index. ## Key facts | Fact | Value | | --- | --- | | Units | % | | Sample | Blood draw | | Fasting | Not required | | Results | 7–10 business days | | Price | $69.99 | | Labs | Quest | ## What does Omega-3 Index measure? The percentage of EPA + DHA in your red blood cell membranes. A long-term marker of omega-3 status. ## What is the normal range for Omega-3 Index? | Population | Reference range | | --- | --- | | age 18+ | 8.00 – 12.0 % | Reference intervals differ slightly between labs; the range printed on your report is the one to interpret against. Ranges are usually set so 95% of healthy people fall inside them. ## What does a low Omega-3 Index mean? Below 4% is associated with higher cardiovascular risk; the target is generally 8% or above. ## How do you get tested for Omega-3 Index? | Order | Type | Price | Includes | | --- | --- | --- | --- | | [Omega-3 Index](https://www.test-well.com/tests/omega-3-index) | Single test | $69.99 | This marker | | [Longevity & Anti-Aging Panel](https://www.test-well.com/tests/longevity-panel) | Panel | $239.99 | 13 tests | | [Healthy Aging Panel](https://www.test-well.com/tests/healthy-aging-panel) | Panel | $299.99 | 15 tests | | [Total Body Panel](https://www.test-well.com/tests/total-body-panel) | Panel | $499.99 | 49 tests | ## Quest vs Labcorp vs BioReference | Lab | Available | Price | Notes | | --- | --- | --- | --- | | Quest Diagnostics | Yes | $69.99 | Choose Quest at checkout; walk-in patient service centers in every state TestWell serves outside NY and NJ. | | Labcorp | No | — | Not offered through Labcorp for this test. | | BioReference (NY & NJ) | No | — | Not available in NY/NJ for this test. | - [What a low Omega-3 Index means (causes, symptoms, next steps)](https://www.test-well.com/biomarkers/omega-3-index/low) ## Common questions about Omega-3 Index ### Do I need a doctor's order to test my omega-3 index? No. TestWell's licensed physician network reviews and approves your order — usually within minutes. You can place an order online without an in-person visit or a referral from your own doctor. ### How long does it take to get Omega-3 Index results? Most Omega-3 Index results are available in 1–3 business days after your specimen arrives at the lab. You'll get an email the moment your results are ready, with everything viewable in your TestWell portal. ### How much does a Omega-3 Index test cost? Our Omega-3 Index starts at $69.99. That's the all-in price — no copays, no insurance hoops, no surprise bills. HSA and FSA cards are accepted. ### Do I need to fast before my Omega-3 Index test? Fasting is not required for the Omega-3 Index test. You can have your blood drawn any time of day. ### Which lab will process my Omega-3 Index test? Your test will be processed by Quest Diagnostics, Labcorp, or BioReference depending on which is closest to you and which lab carries the test. All three are CLIA-certified and trusted by hospitals nationwide. You'll choose your lab during checkout from 4,000+ locations. ## Sources - [OmegaQuant](https://omegaquant.com/what-is-the-omega-3-index/) - [NIH Office of Dietary Supplements — Omega-3 fatty acids fact sheet](https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/) ## Related biomarkers - [Apolipoprotein B](https://www.test-well.com/biomarkers/apolipoprotein-b) - [Lipoprotein(a)](https://www.test-well.com/biomarkers/lipoprotein-a) - [NT-proBNP](https://www.test-well.com/biomarkers/nt-probnp) - [Homocysteine](https://www.test-well.com/biomarkers/homocysteine) - [LDL Particle Number](https://www.test-well.com/biomarkers/ldl-particle-number) - [Small LDL Particle](https://www.test-well.com/biomarkers/small-ldl-particle) - [Reference range lookup tool](https://www.test-well.com/tools/reference-range-lookup) - [Lab unit converter](https://www.test-well.com/tools/lab-unit-converter) - [All biomarkers](https://www.test-well.com/biomarkers) --- Medically reviewed by Youmna DiStefano, MD (Medical Reviewer, TestWell); last reviewed 2026-09-05. Review policy: https://www.test-well.com/reviewers/youmna-distefano-md Canonical page: https://www.test-well.com/biomarkers/omega-3-index Machine-readable catalog: https://www.test-well.com/api/catalog.json · MCP server: https://www.test-well.com/mcp · Overview for agents: https://www.test-well.com/llms.txt Prices are cash-pay, in USD, and include physician authorization; every order adds one flat $6 lab processing fee. Educational content is not a diagnosis — discuss results with a clinician.