Omega 3 Index

A single-marker test measuring the Omega-3 Index — the percentage of EPA and DHA in red blood cell membranes — which reflects long-term omega-3 fatty acid status over the preceding two to three months. A more reliable measure of omega-3 status than a snapshot of plasma levels.

The Omega-3 Index measures the proportion of the omega-3 fatty acids EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid) in red blood cell membranes, expressed as a percentage of total fatty acids. Because red blood cells have a lifespan of approximately 120 days, the index reflects average omega-3 intake and incorporation over the preceding two to three months rather than what was consumed at the most recent meal. An Omega-3 Index above 8% is generally considered optimal and has been associated in observational research with favourable cardiovascular outcomes, while an index below 4% is considered low. The average in Western populations typically falls between 4% and 6%, suggesting that most people consuming a standard diet are below the optimal range. The test is particularly relevant for individuals who do not regularly eat fatty fish, those taking fish oil or algae-based omega-3 supplements who want to verify their dosage is effective, and anyone interested in the cardiovascular and anti-inflammatory dimensions of their nutritional profile. At EUR 99, this test provides a clear, evidence-based data point that guides supplementation decisions with more precision than simply following general dosage guidelines. It pairs well with the Vitaminen en Mineralen Gold panel for a comprehensive nutritional assessment.