Docosahexaenoic Acid (DHA)
Lipids marker
DHA
Docosahexaenoic Acid (DHA)
A long-chain omega-3 fatty acid measured as a percentage of total fatty acids on a red-blood-cell or plasma panel. DHA is a major structural fat in neural and retinal membranes and, with EPA, drives the cardiovascular and anti-inflammatory benefits of marine omega-3s.
PED Notes
DHA percentage is a marker of omega-3 status and, together with EPA, forms the basis of the Omega-3 Index. A low DHA reflects inadequate marine omega-3 intake and a pro-inflammatory fatty-acid balance. For AAS users, whose lipids and cardiovascular risk are already worsened, improving DHA/EPA status is a cheap, evidence-based support measure that lowers triglycerides and inflammation. DHA is raised most efficiently by oily fish or fish/algal oil. As with all fatty-acid percentages, results depend on the panel matrix (red cell vs plasma), so trend against the same lab's reference.
When low
When DHA is low:
Supplements and diet:
- Fish oil (EPA/DHA) -- 2-3g combined EPA+DHA per day with food; choose a product with a meaningful DHA share
- Algal oil -- a DHA-rich vegan option
- Oily fish -- 2-3 servings/week (salmon, sardines, mackerel)
- Recheck after 8-12 weeks; DHA percentage rises with consistent intake
Note: DHA and EPA together determine the Omega-3 Index; aim to move the combined red-cell EPA+DHA toward the 8%+ cardioprotective target.
History Chart
Reading History
Frequently Asked Questions
Reference Ranges
Standard Range
VitalMetrics Range