If you've ever nursed a cold with hot tea and honey, jump-started the day with a cappuccino, or soothed a sore throat with a mentholated cough drop, you've practiced herbal medicine. These remedies are so much a part of our daily routine that no one thinks them flaky. Nor do most doctors mind that you use them--as long as you don't overdo it. So why are so many U.S. physicians reluctant to recommend herbal supplements? Is it just a matter of ignorance and provincialism?
No. Physicians have legitimate concerns about the safety, efficacy and potential misuse of the herbal products that...