What it measures
The omega-3 index is EPA plus DHA, the two main marine omega-3 fats, as a percentage of all the fatty acids in red blood cell membranes. Red cells last about four months, so it reflects intake over the past few months.
Why people test it
- Looked at by people tracking how much oily fish or fish oil they eat.
- A widely used single figure for omega-3 status in research.
- Repeated a few months after a change in diet, as red cells take time to turn over.
Typical range
Ranges vary by lab, method, age and sex, and your report shows the lab's own range. Whole blood or plasma results are not the same as the red cell index, so some labs convert them.
Finger-prick or vein?
A finger-prick sample is usually fine, as fatty acid tests are often run on dried blood spots. Vein draws are offered too.
· 250 capsules · 83.3 servings · 2.25 g a serving