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A recent study found that people who take fish oil are less likely to suffer a heart attack.
About 26,000 people participated in the so-called vitamin D and omega-3 trial. The trial – considered "the largest and most recent test whether vitamin D or fish oil can actually prevent cancer or cardiovascular disease" – followed the participants for about five years.
In the end, the researchers concluded that omega-3 fatty acids, or fish oil, "were associated with a significant reduction in heart attacks," according to a press release from the North American Menopause Society regarding the results. The results will be presented at the organization's annual meeting this month.
"The most significant therapeutic benefits were observed in people consuming less fish diets below the median of the cohort of 1.5 servings per week, but not in those whose intake was higher than this level," researchers said, noting that African Americans greater risk reductions. "
Vitamin D has also had beneficial effects, namely reducing the risk of death from cancer.
Specifically, vitamin D was "associated with a statistically significant reduction in total cancer mortality among people participating in the trial for at least two years," they wrote.
"The outcome structure suggests a complex balance of benefits and risks for each intervention," said Dr. JoAnn Manson, the lead author of the study, in a statement.
That said, Manson added, the results "highlight the need for additional research to determine which individuals are most likely to derive a net benefit from these supplements."
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