Does Fish Eating Make People Healthy And Happy?
The first reason is that seafood and certain species of fatty fish provide omega-3 fatty acids called DHA and EPA. Both are very important to the brain. Depressed people usually have low blood levels of DHA.
Research has shown that other omega-3s found in plant foods and vegetable oils do not raise blood levels of DHA. It takes DHA specifically to raise those levels. So, your body truly needs DHA.