Start vetting your supplements

Online tools enable consumers to vet dietary supplements before taking them. That’s important, since dietary supplements sometimes contain hidden prescription drugs, controlled substances, or untested and unstudied components. Some of the most reliable tools to vet supplements are provided on the websites of the FDA, National Institutes of Health, and Department of Defense. Consumers can look up basic information about dietary supplements, clinical evidence about their use and effectiveness, suspicious ingredients they may contain, and safety violations.