Seven Seas Pure Cod Liver Oil Extra High Strength enriched with Omega-3 Fish Oil and Vitamins D & E 150ml supports all round good health. Omega-3 which contains EPA and DHA: Supports a healthy heart Helps maintain normal vision Helps maintain normal brain function Research has shown that eating 250 mg daily of EPA/ DHA as part of a healthy lifestyle contributes to normal heart function, normal vision and normal brain function.Vitamin D: Supports a healthy immune system Helps maintain healthy bones, muscles and teeth. Vitamin E: Helps protect against free radical and oxidative damage.