The short answer
Omega-3 Index measures Omega-3 Index (%), EPA and DHA plus 2 more from a standard blood draw. At TestWell it costs $69.99 plus a $6 lab fee, needs no fasting, and results post in 7–10 business days. Physician-authorized with no doctor's visit or insurance needed; draw at Quest.
Hospital Lab
$250
cash pay
Other Labs
$90
+ lab fees
TestWell
$69.99
+ $6 lab fee
The Omega-3 Index measures the percentage of EPA and DHA omega-3 fatty acids in your red blood cell membranes. Unlike a simple blood level, the index reflects your average omega-3 intake over the past 2–3 months. An index of 8% or higher is associated with the lowest cardiovascular risk, while below 4% is considered high-risk. Low omega-3 levels are linked to inflammation, depression, cognitive decline, and increased risk of sudden cardiac death.
RBC membrane EPA + DHA expressed as % of total fatty acids. Sustained omega-3 index ≥8% is associated with the lowest cardiovascular and all-cause mortality risk in long-term studies.
Anyone optimizing cardiovascular risk beyond standard lipid management, fish-oil supplement users wanting to verify absorption/dose, athletes monitoring recovery markers, or pregnant women optimizing DHA for fetal brain development.
Sample Type
Blood draw
Fasting
Not required
Results In
7–10 business days
Performed At
Quest
5 biomarkers tested · 2 measured, 3 calculated from them
Your Omega-3 Index results will include values for each of the 5 biomarkers tested, along with reference ranges. Results are reviewed by a licensed physician before being released to your secure portal.
If any values fall outside the normal range, your report will include guidance on what that may mean and recommended next steps. You'll receive an email notification when your results are ready, typically within 7–10 business days.
Typical reference range layout
Lab reports show where your value sits relative to established reference intervals—your physician interprets this in context for you.
No fasting required. Do not take fish oil supplements for 48 hours before testing for a baseline reading.
A Omega-3 Index test costs $69.99 at TestWell — $75.99 all-in when ordered alone, because the $6 lab processing fee is charged once per order, with no draw fee or physician fee added. Hospital outpatient labs typically bill around $250.00 self-pay for the same test, and often more. With insurance, what you pay depends on your deductible and your plan's negotiated rate; TestWell's price is fixed before the draw and is HSA/FSA-eligible.
| Where you order | Price | One test, all-in | Notes |
|---|---|---|---|
| TestWell (drawn at Quest or Labcorp) | $69.99 | $75.99 | Includes the one $6 lab processing fee, charged once per order |
| Hospital outpatient lab, self-pay (typical) | $250.00 | $250.00 | Reference figure; hospital charges vary widely by facility and are often higher |
Lab test codes: Quest test code 92701. Competitor prices are read from the linked public pages and re-checked regularly; the labs' sites may add taxes or change prices without notice.
TestWell Price
$69.99
+ $6 lab processing fee at checkout
No insurance needed · HIPAA compliant
Frequently ordered together
Customers who ordered Omega-3 Index also added these for a more complete health picture.
Not sure where to start?
Omega-3 Index
$69.99