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Fish Oil May Harm Brain Injury Recovery
21 Apr
Summary
- Fish oil supplements may hinder brain's ability to heal from injuries.
- EPA in fish oil linked to slower cell repair and tau protein buildup.
- Benefits may not apply to those with brain injuries, study suggests.
Fish oil supplements, commonly taken for cognitive health, may paradoxically slow the brain's healing from traumatic injuries, according to a recent study. Researchers found that eicosapentaenoic acid (EPA), a key omega-3 fatty acid in fish oil, was associated with impaired cell repair functions in animal models and human cells.
The study, which examined mouse models and human brain tissue, suggests EPA might hinder neurovascular damage repair. This could potentially exacerbate the buildup of tau, a protein implicated in Alzheimer's disease and CTE, a degenerative condition found in athletes with repeated head trauma.
While docosahexaenoic acid (DHA), another omega-3 in fish oil, showed no negative effects, EPA's impact highlights that the benefits of these supplements are context-dependent. The findings indicate that fish oil may not offer the same brain health advantages for individuals with existing brain injuries as it might for healthy individuals.
