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I saw this recently and also another similar earlier in the year, both of which are simply studies or a meta-analyses of previous studies that not only don't look at very key intangibles such as dosage taken or level of omega 3 fatty acids in the body but seem to be meant to undermine the many other benefits of omega 3s as well. And how long term is 12-72 months when speaking of a lifetime effect? The article even points out the fact these were participants who increased omega‐3 fats, or maintained their usual fats for at least a year. How much of a lifetime effect can you expect from 1 or even a few years of supplementation and/or an increase in omega 3 food sources? And, again, that's supplementation for not only a relatively very short amount of time but with no control of the dosage or quality of the supplement itself. You can get fish oil supplements in a dollar store but I don't know what sane person would believe they'd derive much benefit from it. Other studies in the past that did include a higher dosage of 1800mg of Omega 3 fatty acids per day did show a modest, but statistically significant difference compared to this study, 9-20% decrease in cardiovascular disease.Interesting new study done on omega 3 fatty acids...
https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD003177.pub3/full
Another thing skewing this study greatly is the fact they say participants were taken from several different rich countries. As we know, there's a very big difference in diets from country to country. How many participants, for example, come from Japan where people have more healthy diets rich in Omega3s as compared to the US diet that is rich in meat from cows raised primarily on grain in feedlots? Are we to believe the US diet, in which there is a high level of obesity and lesser quality of life as we age, is as healthy as the Japanese diet, in which there is a very low level of obesity and greater quality of life as they age? To take such a study as this to heart, that's exactly what you'd have to believe.