Yes and no about the elite athlete stuff Michael Phelps is a bit of an anomaly on that because he eats like shit and is still in phenomenal shape. Given this is because the guy works out like an elite athlete 30 hours a week. also if he maintains that diet he will be about 600 pounds 2 weeks after he stops working out the way he does..  http://blogs.wsj.com/health/2008/08/13/the-michael-phelps-diet-dont-try-it-at-home/