Canned fish preserves the freshness and beneficial properties of sea fish In the absence of fresh sea fish on store shelves, canned fish becomes an important component of the diet - a source of calcium, irreplaceable minerals, vitamins, trace elements and Omega-3 fatty acids. Heat treatment of marine fish does not reduce the content of useful polyunsaturated fatty acids. According to research conducted at the Institute of Biophysics of Russia, the largest amount of useful Omega 3 polyunsaturated fatty acids is found in canned fish - due to the fact that the fish loses moisture in the process of cooking canned fish. Remember - wild sea fish should be present in the diet of every person. In addition, if fresh fish needs to be cleaned, marinated and cooked, then canned fish is a ready-made dish from sea fish!