Discovery: this food can reduce aggressiveness

Omega-3 fatty acids, found in fish and certain oils, are well-known for their numerous health benefits, including cardiovascular and mental health. A recent study adds a new benefit to this list: the reduction of aggressiveness.


A study conducted by Adrian Raine, a neurocriminologist at the University of Pennsylvania, and published in Aggression and Violent Behavior, shows that omega-3 supplementation can decrease aggressiveness. This research is based on a meta-analysis of twenty-nine randomized controlled trials conducted between 1996 and 2024, involving nearly 4,000 participants. The results indicate a 30% reduction in aggressive behaviors, whether reactive (in response to provocation) or proactive (planned).

Omega-3s play a crucial role in the structure and function of the brain, influencing neurotransmitters and gene expression. According to the researchers, this neurochemical action explains why these fatty acids can mitigate aggressive behaviors. Adrian Raine notes that while omega-3s are not a cure-all for violence, they can be a valuable aid.

The study's results suggest that omega-3 supplementation could be beneficial in various contexts, such as hospitals or correctional facilities. Adrian Raine and his colleagues encourage the implementation of this approach, while emphasizing the need for further research to assess long-term effects.

Previous work also supports this thesis. A 2001 American study had already established a link between high fish consumption, rich in omega-3, and lower homicide rates. Additionally, a 2017 study by researchers from the Universities of California and Ohio demonstrated that these essential fatty acids promote proper brain function and reduce bouts of violence.

Omega-3s are not only useful against aggressiveness. They also help prevent cardiovascular diseases, reduce inflammation, and support fetal development. Adrian Raine recommends parents include one to two extra servings of fish per week in the diet of their aggressive children, in addition to medical or psychological treatments.

Thus, while omega-3 supplements cannot solve all violence issues, they represent an accessible and promising option for moderating aggressiveness. Researchers call for integrating these findings into common practice and continuing studies to confirm their long-term effectiveness.