Now Extra Strength 1000 mg Cod Liver Oil Softgels abounds in omega-3 fatty acids, EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid). It is also an excellent source of vitamins A and D-3. Cod liver oil has a long history of traditional use for the support of overall health and well-being. One of cod liver oil’s main health benefits is its positive effects on heart health, circulation and cholesterol. There is definitely good reason to recommend cod liver oil for keeping your heart healthy. Cod liver oil can also keep an eye on your blood circulation and the added vitamin A and D assists mineral absorption, which results in supporting blood vessel elasticity. The natural Cod Liver Oil used in this Softgels is manufactured under strict quality control standards. It is tested to be free of potentially harmful levels of contaminants (i.e. mercury, heavy metals, PCB’s, dioxins, and other contaminants). This extra strength product has more cod liver oil (1,000 mg per softgel) than Now's cod liver oil 650 mg softgel product.