Why omega-3 fatty acids are considered essential

Surely you know that omega-3 fatty acids are among the so-called “good” fats, as well as… the intake is associated with multiple health benefits.
Indeed, in the last years, the research interest around the actions of these nutrients is intense, with more and more studies to broaden the range of beneficial the effect in the body and their role in maintaining health and preventing the onset of chronic diseases.
Omega-3 fatty acids, called essential fatty acids, as the body can’t synthesize and therefore must be obtained through diet. Among the richest dietary sources of omega-3 fatty acids include fatty fish, such as salmon, mackerel, sardine, school shark, and anchovy, and some nuts and seeds such as walnuts, pecans, hazelnuts and flaxseed.
Without a doubt, the most thought-out action is concerned in the function of the cardiovascular system. In particular, the omega-3 fatty acids are associated with reduction in the risk of cardiovascular diseases, which, it seems, is mediated by multiple mechanisms, including improving blood lipid levels, lowering blood pressure, facilitating better functioning of blood vessels and the anti-inflammatory and antithrombotic action.
However, a significant number of studies shows that the benefits of omega-3 fatty acids are not limited only to the cardiovascular system, as it seems that they play an important role in the prevention of the risk of various chronic diseases, such as rheumatoid arthritis, degenerative diseases of the nervous system, certain cancers and depression.
Finally, we should not forget that omega-3 fatty acids are essential for growth and normal functioning of the brain and nervous system, which makes necessary the adequate intake in periods such as pregnancy and infancy and childhood.