The oil is cold pressed, molecularly distilled and assayed for PCB???s & heavy metals.??? The omega-3 fatty acids are important to health, especially for the heart, brain and cell membranes of the body.??? The omega-3 fatty acids, Eicosapentaenoic Acid (EPA) and Docosahexaenoic Acid (DHA), are precursors to the PGE3 series of prostaglandins, which are substances important to proper body regulation