Your Brain On Your Brain On... Omega-3
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Jan 22, 2025 
In this discussion, Richard Bazinet, a University of Toronto professor researching brain lipid metabolism, and Bill Harris, an omega-3 expert behind the Omega-3 Index, share insights on the significance of omega-3 fatty acids for brain health. They unpack the differences between omega-3 and omega-6, revealing how dietary sources are crucial since our bodies can’t produce these essential fats. The conversation also explores the risks of low intake and the importance of DHA at every life stage, while advocating for more comprehensive research on omega-3 benefits and metabolism.
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Hosts' Personal Omega-3 Levels
- Ayesha and Dean tested their omega-3 blood levels despite eating healthy plant-based diets.
- They found surprisingly low omega-3 levels, prompting them to start supplementation.
Essential Omega-3 Types
- Omega-3 fatty acids are essential fats crucial for brain and heart health and must be obtained through diet or supplements.
- There are three main omega-3s: ALA from plants, EPA and DHA from fish and algae, with limited ALA conversion to EPA and DHA.
Brain Fat and DHA Accumulation
- The brain is roughly 60% fat, mostly as phospholipids, distinct from body fat triglycerides.
- DHA, an omega-3, accumulates in the brain starting in the third trimester and continues to about age two.