Natures Aid Cod Liver Oil is specially prepared, with carefully chosen Cod Liver Oil to provide a potent source of the important Omega-3 nutrients EPA & DHA, traditionally used to help maintain joint mobility. Cod Liver Oil provides Vitamins A & D required for maintaining healthy hair, skin, nails & eyes, sound teeth & strong bones. Benefits: Blood flow, Blood pressure, Coronary Heart Disease, Bones & Teeth, Vision, Healthy Skin, & Mucous Membranes. This is now probably one of the biggest selling supplements in Europe. Our grandparents are fond of telling stories of taking their daily dose of Cod Liver Oil (CLO) to relieve such complaints as rheumatism, aching muscles & stiff joints.