JACK Challem, known as the Nutrition Reporter(TM), is a leading health journalist with more than 25 years of experience reporting on nutrition research. In addition to his scientific articles, he is a contributing editor for Let's Live and Natural Health magazines and the coauthor of The Natural Health Guide to Beating the Supergerms.

Burt Berkson, M.D., Ph.D., practices nutritional medicine as President of the Integrative Medical Centers of New Mexico. He has conducted research and served as a professor at several institutions, including Rutgers University, and is one of the world's leading experts on alpha lipoic acid, an important antioxidant. His other books include The Alpha Lipoic Acid Breakthrough.

Melissa Diane Smith is a nutrition counselor specializing in customized diet plans and consumer education. The author of All About Zinc and the coauthor of All About Vitamin E and Why Am I Always So Tired?, Smith writes about nutrition topics for a variety of health magazines, including Great Life and Delicious!.