Mike Israetel, born in Moscow, Russia in 1984, is a prominent American exercise scientist, sports nutrition consultant, and media personality. He holds a Ph.D. in Sport Physiology from East Tennessee State University. Israetel is well-known for his expertise in sports science, nutrition, and coaching, and is also a former competitive bodybuilder and Brazilian Jiu-Jitsu grappler.
Israetel is the co-founder and Chief Content Officer of Renaissance Periodization (RP Strength), a company providing science-based training and diet coaching. He is also the face of RP Strength's popular YouTube channel, which has over 2.25 million subscribers. Previously, he was a professor of Exercise and Sport Science at Temple University and has consulted on sports nutrition for the U.S. Olympic Training Site. He has authored several books, including "The Renaissance Diet 2.0", "Scientific Principles of Hypertrophy Training", and "Scientific Principles of Strength Training". In July 2024, Israetel announced he was stepping back from competitive bodybuilding to focus on content creation and other ventures.