The futility of omega-3 was confirmed once again
Omega-3 fatty acids did not reduce the risk of heart attack
Alexey Yevglevsky, Naked Science
An analysis of 79 scientific papers, in which 112,059 people participated, did not confirm the benefits of omega-3 fatty acids for the cardiovascular system. This is reported by the publication The Guardian with reference to the Cochrane Library database (Abdelhamid et al., Omega-3 fatty acids for the primary and secondary prevention of cardiovascular disease).
Out of 79 studies, 25 scientists regarded as reliable, in which, in their opinion, there was a low risk of prejudice. Both men and women from North America, Europe, Australia and Asia participated in all the presented works. Some of them had cardiovascular diseases. As a rule, the authors of the studies divided the subjects into two groups: the first took omega-3 fatty acids with food, and the second followed a normal diet.
Cochrane Library experts have not found any benefits from omega-3 supplements. Fish oil containing eicosapentaenoic acid (EPA) did not have a positive effect on the cardiovascular system. Alpha-linolenic acid (ALA), which is found in walnuts, showed a slight improvement. Because of it, according to scientists, the risk of coronary heart disease has decreased by five percent. Experts did not consider such a coefficient significant.
Dr. Lee Hooper from the University of East Anglia, who supervised the work, said that trials in the late 80s and early 90s created a stereotype that omega-3 fatty acids reduce the risk of heart attack. However, according to her, not a single study since then has proved this statement clearly. However, she believes that fish contains other useful elements, such as iodine, calcium and vitamin D.
Last year, an international team of scientists conducted a double-blind placebo-controlled study on 576 patients with chronic renal failure, which also showed that pharmaceutical fish oil does not reduce the risk of cardiovascular diseases.
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