In the latest episode of MUNCHIES’ FUEL series, dedicated to high-performance diets of athletes, cameras follow Robert Oberst (aka Obie) — one of America’s leading professional strongmen. He’s 29, 400 pounds and 6’8″ tall. He also holds the American record in the Log Lift. So, what does a man of that stature eat you ask? Well, the giant of a man consumes 15,000–20,000 calories a day to fuel himself through hours of punishing training.

Watch as Obie shows off his daily routine from the gym to the grocery store to the kitchen.