Researchers from University of East Anglia suggested that Omega 3 supplements hardly aid in treatment of heart diseases.
Omega 3 is a polyunsaturated fatty acid found in walnuts, salmons, canola oil, sardines, chia seeds, and others. Small amounts of omega 3 fats are essential for good health. It is commonly thought that high consumption of omega 3 fats protect against heart diseases by reducing blood pressure or reducing cholesterol. The research analyzed seventy-nine randomized trials involving 112,059 people. These trails assessed effects of consuming additional omega 3 fat, compared to usual or lower omega 3, on diseases of the heart and circulation. One group of participants was assigned to increase their omega 3 fats intake and the other group to maintain their usual intake of fat for at least a year. It was observed that increasing intake of long-chain omega 3 provides little or no benefits as previously thought. Furthermore, it was evident that long-chain omega 3 fats had little or no meaningful effect on the risk of death from any cause. Consuming more long-chain omega 3 fats, which included both eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), through supplements offered little or no difference to risk of cardiovascular events, coronary heart deaths, coronary heart disease events, stroke or heart irregularities.
Although reduction in blood fats, triglycerides, and HDL cholesterol was evident due to omega 3 fats, reducing HDL provoked heart diseases. The systematic review suggests that consuming ALA offered little or no effect on cardiovascular deaths or deaths from any cause. However, it was observed that eating more ALA aids in reducing the risk of heart irregularities from 3.3 to 2.6%. Furthermore, increase in the intake of long-chain omega 3 or ALA probably does not affect body weight or fatness. The research was published in the Cochrane Library on July 17, 2018.