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Since their introduction in 1994, dietary supplements have gained a significant foothold in the American health-care system. The fact that almost 20% of US adults spend a total of $14 billion annually on nonvitamin, nonmineral “natural” products1 is a testament to the popularity of these supplements. However, most consumers, and many health-care professionals, are unaware that clinical pharmacology has played a key role in assessing the safety of herbal supplements. In the process, a productive—though often stormy—relationship has developed between clinical pharmacology and the dietary supplements industry. Clinical Pharmacology & Therapeutics (2010) 87 2, 235–238. doi:10.1038/clpt.2009.245
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Bill J. Gurley (2009) studied this question.
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