Omega-3 Supplements May Help Reduce Aggression, Study Finds

Omega-3 Supplements May Help Reduce Aggression, Study Finds
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Omega-3 fatty acids, commonly found in fish oil supplements and known for their mental and physical health benefits, may also help reduce aggression, Science Alert reported. The findings come from a 2024 meta-analysis published in Aggression and Violent Behavior by researchers at the University of Pennsylvania.

The study analyzed data from 29 randomized controlled trials involving 3,918 participants across different age groups and backgrounds. It found that omega-3 supplementation led to an average 28% reduction in aggressive behavior, including both reactive (impulsive) and proactive (planned) aggression. The trials, conducted between 1996 and 2024, lasted about 16 weeks on average and included participants ranging from children to older adults.

Lead author and neurocriminologist Adrian Raine said the results support the broader use of omega-3 in community, clinical, and criminal justice settings to help manage aggression. Researchers believe the supplement’s anti-inflammatory properties and role in supporting brain function may contribute to these effects.

While the authors cautioned that more long-term research is needed, they said the evidence suggests increasing dietary intake of omega-3—through fish consumption or supplements—could complement existing behavioral or medical treatments for aggression.