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In an ideal world, no one would need dietary supplements. Our balanced diets would provide all the vitamins, minerals and other nutrients our bodies need. Alas, the world of American eating is far from ideal. And that, some nutrition experts and supplement advocates argue, is why we need dietary supplements. The latest federal data show that more than half of U.S. adults use dietary supplements, mostly multivitamins.
It's best to get fiber from food, because supplements don't provide the vitamins, minerals and other nutrients that fiber-rich foods do. But fiber supplements can contribute to the recommended daily intake. Fiber supplements can cause abdominal bloating and gas, at least initially. So if you have intestinal problems, talk to your doctor before adding a fiber supplement to your diet. It's also a good idea to ask your doctor or pharmacist whether fiber supplements interact with any medications you take.