Omega 3 is an essential fatty acid (EFA, also known as a polyunsaturated fatty acid (PUFA)) that is derived from both animal and plant sources, although Omega-3 from fish oil is the most common supplemental form. Fatty acids are the basis of fats and oils, and, despite popular belief, are necessary for overall health. These fatty acids are termed "essential" because your body cannot manufacture them by itself. EFA's must come from food or supplemental sources. They are also essential because they are a component of every living cell in the body, and are necessary for rebuilding existing cells and the production of new cells. Supportive but not conclusive research shows that consumption of EPA and DHA omega-3 fatty acids may reduce the risk of coronary heart disease.
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