* Purity, Freshness, 3rd Party Tested * Medium to Large Breed Dogs * Pure Omega-3 Oil Supplement * (With Naturally Occurring Vitamin A) * Wild Arctic Cod Liver Oil * For Optimal Pet Health and Wellness * Sustainable Fishing * Distilled for Purity Nordic Naturals" exceptional quality cod liver oil is derived exclusively from wild Arctic cod. Important omega-3 fatty acids, EPA and DHA, help support healthy skin, coat, joints, heart and the development and maintenance of the brain and eyes. All natural vitamin A helps support vision and immune function. Nordic Naturals oils are distilled for purity, and surpass the strict international standards for purity and freshness (European Pharmacopoeia and World Health Organization).