Dietary supplements are estimated to be responsible for tens of thousands of emergency department visits each year in the US.
1 To identify potentially dangerous supplements and manage their risks, clinicians and consumers require access to accurate information about supplement ingredients. In an effort to provide a resource for researchers, clinicians, and the public, the National Institutes of Health (NIH) maintains an online searchable database of supplement labels.
2 To our knowledge, whether supplements categorized as containing novel ingredients in the NIH database are accurately labeled has not been previously studied.