
High Performance Health The Omega-3 Levels That Predict Your Lifespan | Dr. William Harris on Heart, Brain & Inflammation
Dec 8, 2025
In this enlightening talk, Dr. William Harris, a leading omega-3 researcher and founder of the Fatty Acid Research Institute, dismantles common myths about omega-6 and seed oils. He clarifies why the omega-6:3 ratio is misleading, emphasizing the importance of EPA and DHA for mental health and cardiovascular wellness. They discuss optimal intake levels, why many are deficient, and the crucial role of omega-3 during pregnancy and childhood. Harris also addresses misconceptions about mercury in fish and offers practical advice on sourcing omega-3s effectively.
AI Snips
Chapters
Transcript
Episode notes
Membrane Effects Explain Wide Benefits
- EPA and DHA incorporate into cell membranes and improve cell function across tissues.
- That membrane effect explains broad benefits from mental health to vascular flexibility and lower clotting risk.
Prioritise Omega-3 In Pregnancy
- Pregnant and breastfeeding women should raise omega-3 intake to support fetal and infant brain development.
- Use testing and aim toward the 8% Omega-3 Index to lower preterm birth risk and support maternal mental health.
Support Kids With Daily EPA+DHA
- Give children regular EPA+DHA through diet or supplements to support development and classroom performance.
- Aim for roughly 500–1,000 mg/day for kids as a practical target when testing isn't done.

