Overview of Dietary Supplements By Laura Shane-McWhorter, PharmD, University of Utah College of Pharmacy Reviewed / Revised Jan 2023 View Patient Education Definition Labeling Safety and Efficacy Purity and Standardization Other Concerns More Information Topic Resources Some Possible Dietary Supplement -... Dietary supplements are the most commonly used of all integrative, complementary, and alternative therapies, primarily because they are widely available, relatively inexpensive, and can be bought without consulting a health care practitioner.