I talk with Ben Greenfield about the benefits of a ketogenic diet for endurance athletes. Ben recently competed in Ironman Kona and Ironman Canada using a ketogenic diet. We talk about why he used a ketogenic diet and if he’d ever do it again. We also talk about his minimal training protocol, where Ben gets incredible results from small amounts of targeted training. Check out his latest book Beyond Training: Mastering Endurance, Health & Life.