Fish oil supplements, usually used during pregnancy and for cardiovascular and brain health, have been warned against as it may increase the risk of heart problems and stroke, according to new research.
A U.K. study that was published in the British Medical Journal got to know that regular use of fish oil supplements was linked to a higher risk of stroke and atrial fibrillation (irregular heartbeat) in healthy individuals.
However, the study also found that these supplements could be beneficial for people with known cardiovascular disease.
“Regular use of fish oil supplements might have different roles in the progression of cardiovascular disease,” the authors wrote.
Researchers looked at data that had more than 415,000 people aged 40 to 69 years between 2006 and 2021 in the United Kingdom.
Richard Bazinet, a professor in the Department of Nutritional Sciences at the University of Toronto, described the research as an “important study.” He noted that it contributes to a growing body of evidence suggesting fish oil supplements may potentially lead to atrial fibrillation in the general population.
“The disadvantage of this study is it’s what we call observational, so that means they didn’t randomize healthy and unhealthy people to get fish oil or a placebo group,” Bazinet said in an interview.
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