Omega-3 Fatty Acids: Potential Benefits for Reducing Aggression

There’s some interesting news about omega-3 fatty acids. These fats, often taken as fish oil supplements, are not only believed to promote general health but may also help reduce aggression, according to a study from 2024.

This isn’t just speculation; omega-3 has been associated with preventing conditions like schizophrenia, which suggests that nutrition might play a role in behaviors associated with aggression. Basically, what we eat can impact our brains in significant ways.

A team from the University of Pennsylvania expanded on previous, smaller studies examining the link between omega-3 supplementation and aggression. Their meta-analysis reviewed 29 randomized controlled trials involving nearly 3,918 participants.

The results revealed a modest yet significant short-term effect—up to a 28 percent reduction in aggression, factoring in variables such as age, gender, medical history, and treatment regimen.

“I think it’s time to consider omega-3 supplementation as a means to reduce aggression, whether in communities, clinics, or the criminal justice system,” commented neurocriminologist Adrian Raine news of the publication.

The trials covered a wide age range, including children under 16 and older adults between 50 and 60, with an average duration of 16 weeks running from 1996 to 2024.

Interestingly, the reductions in aggression included both reactive aggression—responses to provocation—and proactive aggression, which is more premeditated. Prior to this study, the impact of omega-3 on these distinct types of aggression hadn’t been clearly established.

While more extensive studies over longer time frames are needed for a firmer understanding, these findings do shed light on how fish oil supplements and their omega-3 content could be beneficial for mental health.

Raine suggested that parents with aggressive children should consider that, alongside any prescribed treatments, adding fish to their child’s diet could be another helpful option.

The research team speculates that omega-3 might play a role in managing aggression by reducing inflammation and supporting crucial brain functions. However, numerous questions remain, prompting the authors to advocate for further exploration into this area.

Additionally, the studies indicate that omega-3 could lower the risk of serious heart issues like strokes and heart attacks, suggesting multiple health benefits to integrating omega-3 into one’s diet.

“Omega-3 isn’t a cure-all for violence in society,” Raine noted. “But can it help? Based on our findings, we believe it can, and we ought to start applying this new understanding.”

This study has been published in Aggression and Violent Behavior.

An earlier version of this article was published in June 2024.