Not the way I see it. I'm a brain cancer survivior that has done some fasting and running. I've fasted for 72 hours twice in the last year and a half. The fasting reasoning is based on evidence of studies out of the University of California. There's empirical evidence showing that severe caloric restriction "reboots" a person's immune system. My immune sytem let me down by allowing some out of control cells to grow in my head, so I've "rebooted" it twice. Maybe it'll help in the long run. In the short term, I've become much better acquainted with my actual caloric needs. Those needs are much less than I thought. Not only that, I ran two miles after fasting for nearly 70 hours. I was pretty fast and felt great. How many folks can lay claim to that? Potential of cancer regrowth aside, I can't really say I've felt a whole lot healthier ever before.
Sorry I didn't want to undermine your exploit. I was one of the first to share this story, because it is so impressive. And I'm fascinated by the Running hunter theory. But I followed a link to another post on your blog, with a picture of you, and you looked lean, with a six pack .. So my mind automatically linked to the recent spornosexual post.