Scientists from the University of Pennsylvania have found that people who take omega-3, which is found in fish, flaxseed and walnuts, are less likely to have aggressive and violent outbursts, reports The Daily Mail.

The team analyzed over 20 studies that tested the nutrient, finding a 30 percent reduction in aggression among people who took the supplement for at least two weeks.

“I think the time has come to implement omega-3 supplementation to reduce aggression, irrespective of whether the setting is the community, the clinic, or the criminal justice system,” Penn neurocriminologist Adrian Raine said in a statement.

His most recent study, which was published in the journal Aggression and Violent Behavior, collected and analyzed data from 29 previous studies that represented 3,918 participants from 1996 to 2024.

About 51 percent of the individuals were children, but the mean age of participants was 21.74.

Participants took, on average, a 1.18 gram dose omega-3 supplements for 16.37 weeks.

Averaging those findings, Professor Raine and his colleagues found that across people of all ages, genders, psychological diagnosis, treatment lengths and dosage, there was an average reduction of aggressive behavior by 30 percent.