Arthur Agatston, M.D., is a preventive cardiologist and associate professor of medicine at the University of Miami Miller School of Medicine. In 1995, Dr. Agatston developed the South Beach Diet to help his cardiac and diabetes patients improve their blood chemistries and lose weight. Since then, his book The South Beach Diet and its companion titles have sold more than 22 million copies. Dr. Agatston has published more than 100 scientific articles and abstracts in medical journals, and he received the prestigious Alpha Omega Award from New York University Medical Center for outstanding achievement in the medical profession. He lives in Miami Beach with his wife, Sari.

Joseph Signorile, Ph.D., is a professor of exercise physiology and assistant director of the Laboratory of Clinical and Applied Physiology at the University of Miami. He is widely published and lectures frequently on the subjects of exercise training, muscle physiology, and metabolism.