Previous research suggests fish oil may have greater benefits for heart health than for reducing stroke, because there are some mechanisms - such as reducing irregular heart rhythm - which would be more important for heart attack than for stroke. In addition, while fish oil did not reduce the risk of stroke or other cardiovascular problems, it did reduce the risk of heart attack by 28 percent and that is a significant finding. We do caution against taking very high doses, but at the level fish oil in our study there were no significant adverse effects. If you want to consider starting, our recommendation is to talk with your health care provider, but this does not need to be done on an urgent basis. For those already taking supplements, our findings do not offer a clear reason to stop. Should people just throw out their pills? The findings of the VITAL study cast doubt on benefits of fish oil for cancer and cardiovascular disease. Bess Dawson-Hughes, senior scientist and director of the Bone Metabolism Laboratory at the Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University. JoAnn Manson, chief of the Division of Preventive Medicine, Department of Medicine, at Brigham and Women's Hospital, who headed the VITAL trial. To get answers to some of your questions, we spoke with Dr. Shots - Health News Vitamin D And Fish Oil Supplements Mostly Disappoint In Long-Awaited Research Results Many of you wrote in asking, essentially, should I stop taking these supplements? The story prompted a wave of questions from our readers and listeners. (Researchers say further study is needed to see whether those benefits hold up.) But when they looked only at heart attacks, they did find a benefit, especially for African-Americans and people who eat little fish. When researchers looked at cancer and overall cardiovascular events, they found no protective benefit from taking vitamin D or fish oil supplements. The findings of the trial, called VITAL, were complex. On Saturday, NPR published a story on long-awaited research on both supplements that called those claims into question. Many may be motivated by research that has suggested these pills can protect heart health and prevent cancer. Nearly 19 million Americans take fish oil supplements and some 37 percent of us take vitamin D. Research hasn't delivered a definitive answer on whether fish oil and Vitamin D supplements have health benefits, but it's clear that eating fish is beneficial.
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