Mark Stengler, N.M.D., is a naturopathic medical doctor, best-selling author, TV host, and former advisor to the Yale University Complementary Medicine Outcomes Research Project.

He is the author of such books as The Natural Physician's Healing Therapies, and co-author of Prescription for Drug Alternatives and Prescription for Natural Cures.

He was the host of Natural Healing with Dr. Stengler, a series of health shows that played on PBS for several seasons and continues to be seen on cable stations nationwide. He practices what he preaches at his state-of-the-art Stengler Center for Integrative Medicine in Encinitas, California,

Paul Anderson, N.M.D., is a naturopathic medical doctor and Medical Director and Founder of the Anderson Medical Group. His facility Advanced Medical Therapies is the first of its kind in the U.S., offering therapies in multiple modalities based on his over two decades of research and patient care.

He is a recognized authority in the field of integrative cancer research and the treatment of chronic diseases. He is an adjunct professor at Bastyr Integrative Oncology Research Center in Seattle, Washington, and is the primary medical advisor to the Sanoviv hospital in Rosarito, Mexico.