You might take fish oil. You might eat salmon twice a week. But do you actually know what your omega-3 levels look like? Most people don't, because most people have never had them tested.
The Omega-3 Index is a blood test that measures the percentage of omega-3 fatty acids (EPA and DHA) in your red blood cell membranes. It's one of the most practical ways to assess whether your omega-3 intake is actually reaching the levels associated with health benefits.
What the Omega-3 Index Measures
The test specifically measures EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). Because red blood cells have a lifespan of about 120 days, the index reflects your average omega-3 status over the past 3-4 months, not just what you ate yesterday.
Why Omega-3 Levels Matter
Omega-3 fatty acids are involved in cardiovascular health, inflammation regulation, brain health, recovery and performance, and cell membrane health.
What's a Good Omega-3 Index?
- Below 4%: considered high risk (associated with the highest cardiovascular risk)
- 4-8%: intermediate range
- Above 8%: considered optimal (associated with the lowest cardiovascular risk)
Most researchers recommend targeting above 8%. The average North American falls between 4% and 5%.
Why Most People Don't Know Their Levels
Omega-3 testing isn't part of any standard blood panel in Canada. And supplementation isn't one-size-fits-all. Absorption varies based on the form of the supplement, whether you take it with food, your individual metabolism, and the dose. Two people taking the same supplement can end up with very different levels.
How to Get Your Omega-3 Index Tested
You can order the Omega-3 Index test through Bespoke Labs. Add it to your cart, complete a brief health questionnaire, and walk into any Dynacare location in Ontario. If you're supplementing, this is how you find out whether it's actually working.