Sardine Fishes are cold water fish. They are rich in proteins which serve as the basis for most of the body's cell and structures. They are also a natural source of calcium and Omega 3. No preservatives and no added MSG. -Extra virgin olive oil is 100% natural, high vitamin A, D, K & E content, high in polyphenols (a powerful antioxidant) that help to lower blood pressure and rich in oleic acids a monounsaturated fat that reduce the risk of heart disease by lowering bad cholesterol.