Medical University of South Carolina finds EPA in fish oil may hinder brain repair after injuries
Updated
Updated · ScienceDaily · Apr 26
Medical University of South Carolina finds EPA in fish oil may hinder brain repair after injuries
7 articles · Updated · ScienceDaily · Apr 26
Researchers led by Dr. Onder Albayram at MUSC report that EPA, an omega-3 in fish oil, disrupts blood vessel stability and healing signals after repeated mild head injuries.
The study links EPA to impaired neurological recovery, increased tau protein buildup, and reduced gene expression supporting vascular repair in both animal models and human brain cells.
While not a universal warning against fish oil, the findings highlight the need for precision nutrition, especially for those at risk of repeated brain injury, and call for further research into omega-3 effects.
Have we been wrong about the universal brain benefits of fish oil?
Should athletes and veterans avoid fish oil to protect their brains?
How can you determine if omega-3 supplements are helping or hurting you?
Could your daily supplement contribute to dementia after a head injury?
Can a nutrient that heals an infant's brain actually harm an adult's?
EPA in Fish Oil Impairs Brain Repair After Repeated Mild Traumatic Brain Injury: New Evidence from Animal and Human Studies
Overview
A landmark 2026 study revealed that eicosapentaenoic acid (EPA), a key component of fish oil, accumulates in brain blood vessels after repeated mild traumatic brain injuries and disrupts metabolic and gene expression processes critical for blood vessel repair. This leads to neurovascular instability, promoting toxic tau protein buildup and progressive cognitive decline. In contrast, docosahexaenoic acid (DHA) remains protective. Human brain tissue from chronic traumatic encephalopathy cases confirmed these harmful EPA effects. These findings highlight that high-EPA supplements may increase long-term brain injury risks, especially for athletes and military personnel, underscoring the urgent need for personalized omega-3 nutrition strategies tailored to individual injury and health profiles.