CHRIS DEMETRIOS MELETIS, N.D. is Senior Series Editor for the Praeger series, Complementary and Alternative Medicine. He is Senior Science Officer and Associate Professor of Natural Pharmacology at the National College of Naturopathic Medicine. He was chosen for the Naturopathic Physician of the Year Award for 2003-2004 by the American Association of Naturopathic Physicians. He is an international lecturer, and radio personality, and has authored nine earlier books on natural health topics.

Liz Brown is a freelance health and nutrition writer based in Portland, Oregon. She earned a B.S. in Nutrition from the University of Minnesota-Twin Cities and regularly contributes articles to various magazines and newspapers. She is the coauthor of the User's Guide to Vitamins and Minerals.