People who consume more omega-6 fatty acids than omega-3 fatty acids are more prone to depression, a university study has found. Researchers at Ohio State University College of Medicine studied 43 three men and women to determine the link between their consumption of fatty acids and depression and inflammation. Six study participants who had been diagnosed with major depression had 17 times more omega-6 fatty acid than omega-3 fatty acid in their bodies. The study was published in Psychosomatic Medicine journal.

Omega-6 fatty acids are found in refined vegetables oils, which are commonly found in margarines and processed foods. Omega-3 fatty acids are found in fish (particularly salmon and mackerel), walnuts, soybeans, flaxseed oil and canola oil. Researchers believe that foods typically consumed by Americans could be causing the fatty acid imbalance and be contributing to increased rates of depression and even heart disease. Eating a diet rich in omega-3 fatty acids, along with fruits and vegetables, could lower omega-6 levels in the body.