Omega-3 fatty acids do not prevent heart attacks

Taking fish oil supplements to prevent a heart attack has always been somewhat controversial. However, a new meta-analysis, involving almost 78,000 high risk individuals has provided the best evidence to date that the practice is not worthwhile. (1)

The UK researchers analysed the data from 10 trials which had investigated whether taking omega-3 fatty acid supplementation reduced the risk of fatal and non-fatal coronary heart disease as well as other vascular events including stroke.

According to the study findings, published in JAMA Cardiology, those individuals randomised to omega-3 fatty acid supplementation for a mean of 4.4 years experienced no significant benefit in terms of preventing adverse vascular outcomes compared with those who did not receive supplementation.

“Importantly, this meta-analysis also demonstrated no significant effect on major vascular events in any particular sub-groups, including prior ...

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