
Findings of a recent large population survey suggest that 1 in 3 adults in this country (approximately 72 million people) uses 1 or more complementary and alternative medicine (CAM) modalities during any given year.1 Many CAMs are widely regarded as safe on the basis of their established uses in traditional systems of medicine over centuries or longer and their current widespread use in the United States and other Western countries. Unfortunately, there is limited reliable information on potential risks associated with the majority of these approaches.