PS this is in no way to diss Jim, as I think he's an incredible athlete who's tough as nails, it's just food for thought (no pun intended) on nutrition as a crucial component for success.
Interesting... Although I totally agree with his philosophy of eating what your body craves (#intuitiveeatingalltheway) I really see the science behind fat adaption and eating more "primal" and all that.. The scientist in me says the only way to know is if he tackles it again next year with a 180 on his diet and compare the two.
Thanks for chiming in Sarah! You know me, I'm all for intuitive eating too, but if all you're craving is pizza, soda, beer and (junky) snacks I think you should investigate whether that's a real craving for something your body needs OR just relatively poor eating habits that need adjusting? There's always room to give in to eating those fun foods, (I know I have been doing just that during my pregnancy lately!), but if I saw an athlete's diet log of mostly pizza and beer, plus all the sugary fuel, I'd be suspect. Intuitive eating is great, but we still need to aim for moderation and balance! What do you think?