Omega-3 Blood Test
Apr 15, 2026
Omega-3 Blood Test
An omega-3 blood test measures your omega-3 index—the percentage of EPA and DHA (the most important omega-3 fatty acids) in your red blood cell membranes—providing a validated biomarker of cardiovascular risk, inflammation status, and brain health, with an optimal index associated with 90% lower risk of sudden cardiac death compared to low levels. Most UK adults have suboptimal omega-3 levels.
At Blood Test London, omega-3 testing costs from £295 with results in 2-3 days. A doctor always reviews every result.
Understanding the Omega-3 Index
Index | Risk Category |
|---|---|
Below 4% | High risk (cardiovascular) |
4-8% | Intermediate risk |
Above 8% | Optimal (target zone) |
Most UK adults are in the 4-6% range—suboptimal.
Why Omega-3 Matters
Health Area | Omega-3 Benefit |
|---|---|
Heart health | Reduces arrhythmia, inflammation, triglycerides |
Brain health | Cognitive function, depression |
Inflammation | Anti-inflammatory effects |
Eye health | DHA crucial for retina |
Pregnancy | Baby's brain development |
Who Should Test?
Heart disease risk
Family history of cardiac events
Depression or cognitive concerns
Inflammatory conditions
Not eating oily fish regularly
Taking omega-3 supplements (check if working)
Vegetarians/vegans
Longevity optimisation
Book Your Test
Price: From £295
Results: 2-3 days
Doctor review: A doctor always reviews every result
Book via WhatsApp | Phone: 020 3951 3429
Blood Test London by The Wellness. Omega-3 testing from £295. A doctor always reviews every result.