Fish oil ingredient EPA linked to tau buildup and brain vessel damage
Key Points:
- New research suggests fish oil supplements, particularly the omega-3 fatty acid EPA, may hinder brain healing after repeated mild head injuries by destabilizing blood vessel walls and blocking repair signals.
- The study found that long-term fish oil use could increase vulnerability to brain damage and is linked to a buildup of tau protein, associated with neurodegenerative diseases.
- Researchers emphasize that the effects of fish oil are context-dependent and caution against assuming universal benefits, noting that most findings come from animal studies and may not fully apply to humans.
- The study specifically addresses individuals with repeated mild head trauma and does not necessarily apply to people taking fish oil for other health reasons, such as heart health.
- The findings were published in the journal Cell Reports, and experts call for further research to better understand fish oil's impact on brain health over time.