Look Before You Leap When Deciding to Take Supplements
Before you take any supplements for disease prevention, it’s important to know whether the potential benefits outweigh the risks. To make that conclusion, you need to look at the results of well-designed studies. A recent randomized trial in men suggested multivitamins have possible benefits for cancer prevention. For many of the other popular supplements, including vitamin D and omega-3 fatty acids, results from randomized controlled trials should be available within the next five years, according to Dr. Manson.
Until then, be judicious about your use of supplements. If you’re lacking in a particular nutrient, ask your doctor whether you need to look beyond your diet to make up for what you’re missing—but don’t take more than the recommended daily intake for that nutrient unless your health care provider advises it.