Record-breaking marathoner Ryan Hall sits down to talk with nutritionist Dr. Clyde Wilson about "starvation" training for elite runners and other athletes—also known as glycogen super-compensation. The best way to work out for optimum adaptation is to have proper fueling. But there's an opposing idea to this, says Dr. Wilson. What makes muscle adapt, he explains, is oxygen debt, which burns more fat and builds endurance. "Starvation" training is a bit of a misnomer, though, since it means just cutting back on your carb intake somewhat, and definitely not for your hardest training workouts. Watch this video with Ryan and Dr. Wilson, an adjunct professor at Stanford University, to learn more. For more innovations in running, cycling, fitness, yoga, health and the environment, go to Nissan Innovation for Endurance on Facebook: http://www.facebook.com/innovationforendurance—you can also enter for your chance to win a 100% Nissan LEAF.