Syndrome X

Burt Berkson, MD, 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 books include The Alpha Lipoic Acid Breakthrough.

Jack Challem is one of America's most trusted nutrition and health writers and a member of the American Society for Nutrition. Based in Tucson, Arizona, he is the bestselling author of more than twenty books, including No More Fatigue, Stop Prediabetes Now, The Food-Mood Solution, Feed Your Genes Right, The Inflammation Syndrome, and Syndrome X. Jack is a columnist for Alternative & Complementary Therapies, and his scientific articles have also appeared in Free Radical Biology & Medicine, Journal of Orthomolecular Medicine, and Medical Hypotheses. His consumer articles have been published in Body & Soul, Natural Health, Better Nutrition, and many other magazines.

Melissa Diane Smith is a nutrition counselor specializing in customized diet plans and consumer education. The author of All About Zinc, Smith writes about nutrition topics for a variety of health magazines, including Great Life and Delicious!.

Paul Heitsch has been narrating audiobooks since 2011, after having worked as a pianist, composer, recording engineer, producer, and sound designer for many years. His work is often cited for the authenticity he brings to the narrative and characters he portrays, as well as his versatility, and clear, smooth delivery. He has been a presenter at several webinars and seminars for the Audiobook Publishing Association and SAG-AFTRA.