THE NATURAL FORMULA FOR GOOD HEALTH. Seven Seas Pure Cod Liver Oil is also one of the richest natural sources of vitamin A & D. No other vitamin supplement supplies this unique combination of health promoting properties for the whole family. It is a traditional remedy for the relief of joint pains & stiffness. • A fit & healthy body.• Building resistance to infections such as coughs & colds.• Healthy hair, skin & nails.• Good vision.• Strong bones.• Sound teeth.