Omega-3 fatty acids play an important role in the synthesis of prostaglandins, substance that help to reduce high blood pressure, high blood cholesterol and triglyceride levels, inhibit platelet clots or blood. This reduces the risk of blood vessels blockage and the occurrence of a hearth attack.  It is a known fact that Eskimo population barely knows this diseases and their diet is very rich with fish and seafood. At Eskimo diet omega-3 fatty acids are 13.1% of total fat content in the food, even ten times more than the population of Central Europe. Optimal function of nervous system also requires large amount of unsaturated fatty acids, their use can lead to improvements in the case of the nervous system diseases (multiple sclerosis, attention and concentration disorders in children, depression).