As long as Mayweather is also eating healthy and getting all his minerals and vitamins it doesn't really matter if he eats anything he wants unless he gets a heart attack, but maybe its just because he's small, but I've seen him eating, and he usually only has like a small bag of chips or one or two donuts which isn't all that bad. I know when I get in front of a Crispy Creme box their half gone in ten minutes.