Written and reviewed by practitioners, researchers, and educators, this desktop reference presents current knowledge on over 100 popular dietary supplements in a ready-to-use format. Each supplement covered addresses information on recommended or suggested intakes, effects of excessive intakes, sources and bioavailability, supplement interactions, and current knowledge on how the supplement may affect health promotion and disease prevention. A comprehensive introduction to the book covers what practitioners need to know about dietary supplements, labeling and claims, quality and safety, how to assess evidence and efficacy, online resources for reporting adverse events or complaints, and objective sources of additional information. Health professionals providing counsel on dietary supplement use will find this to be an indispensable resource.