Omega-3s Cut Dementia Risk and Depression While Most People Stay Deficient
Dr. Bill Harris, the world's leading omega-3 researcher, explains why 95% of Americans have suboptimal omega-3 levels and how this affects brain health. The optimal omega-3 index is 8%, but most people hover around 5%. Plant-based omega-3s (ALA) convert poorly to the beneficial forms EPA and DHA found in fish - only about 5% conversion rate. Higher omega-3 levels are linked to reduced dementia risk, less depression and anxiety, and longer lifespan. Autopsy studies show dementia patients have lower brain omega-3 levels. The Japanese, with omega-3 levels around 8-9%, live 4.5 years longer than Americans despite higher smoking and stress rates. Omega-3s work by making cell membranes more flexible, improving nutrient transport and waste removal.