What an ultramarathon man eats. When it comes to long-distance running, Scott Jurek wrote the book – well, obviously! He was previously profiled in Christopher McDougall's bestselling Sports book, Born to Run, which details Jurek's triumphant experiences as an "ultramarathoner." For his own memoir, Jurek decided to expand his scope a bit by talking not only about his world-class racing experiences, but about the kind of nutrition that plays a key part in keeping runners at the top of their game. So whether you aim to be an ultramarathoner yourself or you just want to get in better shape, why not take some advice from the man whose running record makes him the Michael Jordan of marathons?