The New York Times ran an excellent feature on Scott Jurek - a fellow Brooks runner who is attempting to break the U.S. record for 24 hours.
You can read all about Scott's effort to run 176+ miles at http://www.nytimes.com/2010/05/13/sports/13runner.html?src=me.
What I enjoyed about this piece is the reference to Jurek's vegan lifestyle. Some of you may know master competitor has been a vegetarian for 10 years, with the vegan diet somewhere beyond that parameter. But this articled does a nice job of framing how Jurek cooks and eats.
It's not for everyone, but neither is 20 mile training runs and ultra events.
To each his own. More soon, I have to go and whip up a smoothie with soy protein.