Definition: A polyunsaturated essential fatty acids found in fish, flax, canola oil, pumpkin seeds, and walnuts. Eating a diet rich in omega-3 fatty acids raises HDL cholesterol levels and may help to prevent cardiovascular disease.
There are three main dietary omega-3 fatty acids -- eicosapentaenoic acid and docosahexaenoic acid (both found in fish and seafood), and alpha linolenic acid found in plants.
