Since 1947 Purified to Eliminate Mercury Non-GMO Gluten, Wheat & Dairy Free Dietary SupplementThis formulation provides a natural, concentrated source of the essential Omega 3 fatty acids EPA and DHA from deep-sea, cold-water fish. EPA and DHA support cardiovascular, joint and immune health. The fish oil in this formulation is tested for optimum purity. It undergoes molecular distillation to remove mercury.