The Essential Fat Most People Lack
If you had to choose one nutritional supplement to take for overall health, omega-3 fatty acids would be a strong contender. They are involved in virtually every aspect of human health – from brain function and cardiovascular protection to inflammation regulation and mood. Yet the majority of people in Western countries are deficient.
At our practice in Zürich Seefeld, I measure the omega-3 index as part of my comprehensive health assessments because it provides actionable information that genuinely impacts health outcomes.
What Are Omega-3 Fatty Acids?
The two most important omega-3s for human health are EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), found primarily in fatty fish, algae, and marine sources. ALA (alpha-linolenic acid), found in flaxseed and walnuts, is a precursor but converts very poorly to EPA and DHA (less than 5%). This means that plant sources alone are usually insufficient.
Why Omega-3s Matter
Cardiovascular health: Omega-3s reduce triglycerides, lower blood pressure, improve endothelial function, and reduce the risk of arrhythmias. Higher omega-3 index is associated with lower cardiovascular mortality.
Brain function: DHA is a major structural component of brain cell membranes. Adequate levels support cognitive function, memory, and processing speed. Low levels are associated with depression, ADHD, and cognitive decline.
Inflammation regulation: Omega-3s are the precursors to anti-inflammatory molecules (resolvins, protectins, maresins). They counterbalance the pro-inflammatory effects of excessive omega-6 intake from processed vegetable oils.
Mental health: EPA in particular has strong evidence for reducing symptoms of depression. Omega-3 supplementation is now recommended as an adjunctive treatment in major depression guidelines.
Joint health: Anti-inflammatory effects help reduce joint pain and stiffness in arthritis and other inflammatory conditions.
Pregnancy: DHA is critical for foetal brain and eye development. Adequate maternal omega-3 status is associated with better neurodevelopmental outcomes.
The Omega-3 Index
The omega-3 index measures the percentage of EPA and DHA in red blood cell membranes – reflecting your body’s omega-3 status over the past 2-3 months. An index below 4% is associated with high cardiovascular risk; 8-12% is considered optimal. Most people in Western countries measure between 3-5%.
Our Approach
I measure the omega-3 index as part of comprehensive health assessments and use the result to guide specific supplementation recommendations. Not all omega-3 supplements are equal – purity, EPA/DHA ratio, form (triglyceride vs. ethyl ester), and dose all matter.
What We Do: Optimising Your Omega-3 Status
Test your omega-3 index: A simple blood test that provides a clear baseline and guides dosing.
Dietary guidance: Increasing omega-3-rich foods – fatty fish (salmon, mackerel, sardines, herring) two to three times per week, or algae-based sources for vegetarians.
Quality supplementation: I recommend high-quality, third-party-tested omega-3 supplements at doses tailored to your index and health goals. Typical therapeutic doses range from 1-3 grams of combined EPA/DHA daily.
Reduce omega-6 excess: Balancing the omega-6:omega-3 ratio by reducing processed vegetable oils and increasing omega-3 intake.
Re-test and adjust: Checking the omega-3 index after 3-4 months to confirm adequate levels have been achieved.
Conclusion
Omega-3 fatty acids are not optional – they are essential for cardiovascular, brain, and immune health. If you have not had your omega-3 index measured, it is one of the simplest and most impactful tests available. Book a consultation at our practice in Zürich Seefeld to find out where you stand.
