Johnsons Cod Liver Oil Capsules are suitable for both dogs and cats, and when given regularly, they will help to promote and maintain good condition, a glossy coat, healthy skin, strong bones and teeth, and aid in the resistance to ailments. They can also be used as a traditional aid to help maintain supple & flexible joints. Cod Liver Oil is a natural dietry supplement that is rich in polyunsaturates and Vitamins A, D and E.