Dr. Joel Kahn is an author and the founder of the Kahn Center for Cardiac Longevity. He is a summa cum laude graduate of the University of Michigan School of Medicine and is a professor of medicine at Wayne State University School of Medicine. He also is the owner of GreenSpace Cafe.

Dr. Kahn gives his takes on a variety of topics, including nutrition, fasting, eating habits, the validity of research studies, sleep, and more. He also dives into his whole food vegan lifestyle, the truth behind intermittent fasting, Mercury levels in fish, and flaws in modern research.