Cardiovascular benefits of increased omega-3 intake have been well known for a long time but the mental health benefits are still being analyzed. It was found, however, that these polyunsaturated fatty acids do influence mood, personality and behavior.

A research that was done included 106 healthy volunteers and assessed levels of omega-3 fatty acids in their blood and compared those levels to the participants' scores on three accepted tests for depression, impulsiveness and personality.

It was found that those who had low levels of omega3 in their blood were more prone to depression, impulsivity and negative outlooks while those who had higher levels were found to be more agreeable and easy going.

Low levels of omega-3 have been linked to mental disorders like major depressive disorder, bipolar disorder, schizophrenia, substance abuse and attention deficit disorder. However, recent studies have shown that people with normal levels of omega 3 suffered from the mentioned disorders as well.

You can increase the levels of omega 3 either by increasing omega-3 rich foods intake or by taking omega-3 supplements and see if you experience any changes in your mood, behaviour or cognitive function.