Nov 14, 2013 — The hospital says it can't guarantee the supplements' safety because of lax regulations. The Food and Drug Administration does not routinely review the manufacturing of dietary supplements, which calls their safety and effectiveness into question, doctors say.
Oct 14, 2013 — Glucosamine and chondroitin have been popular supplements for arthritis for years. But clinical trials in humans haven't shown that they're any better than sugar pills at reducing pain. Some doctors say that if placebos or supplements help people exercise and lose weight, then that's OK.
Oct 12, 2013 — A review of clinical trials using vitamin D to build bone density in middle-aged women finds that it doesn't help. That may be because those women aren't generally low on calcium and that D helps the body absorb calcium in the gut only if it's seriously lacking. It may do more good in the elderly.
Jul 23, 2013 — Physicians are partly to blame for the increasing popularity of untested treatments, says Dr. Paul Offit. Rather than pushing back against misguided patient demand, he says, doctors have "acted like waiters at a restaurant, simply asking, 'What would you like?' "
Jun 14, 2013 — An extract from raw, green coffee beans has been called a "miracle" weight-loss aid. But a study in mice casts doubt on the supplement's fat-burning effects — and even offers preliminary evidence that it could be harmful.
Apr 23, 2013 — More than 200 dietary supplements have been recalled in recent years because they contain drugs that aren't listed on the label, an analysis finds. The ingredients are potentially harmful, researchers say.
Apr 4, 2013 — The Food and Drug Administration says it can't keep up with all the dietary supplements that claim to enhance sexual performance. Many have been found to contain potentially harmful ingredients, so the agency is warning people to beware of the entire bunch.
Feb 25, 2013 — There's no evidence that calcium supplements help prevent bone fractures in most people, a preventive services task force says. And calcium supplements boost the risk of kidney stones, and perhaps heart disease.
Feb 15, 2013 — Exercise buffs who take dietary supplements with the ingredient know as DMAA say the stimulant gives them a boost of energy. But some researchers and the Food and Drug Administration are worried that these products could be dangerous.
Feb 12, 2013 — A study of more than 85,000 women in Norway found that those who started taking a folic acid supplement four weeks before getting pregnant were about 40 percent less likely to have a child who developed the disorder. Mothers had to continue taking the supplement during the first eight weeks of pregnancy to get the full benefit.