Here’s a nice puff piece from the NY Times discussing how professional eaters deal with the health and weight ramifications of their jobs. It basically boils down to eat less, exercise more.
Anywho, there’s also a related audio slide show where chocolatier Robert Untiedt talks about his occupational hazards. Just to put it out there to news media world- I’m happy to talk about how I stay fit when I eat a bazillion times more candy than I probably should. Sadly, unlike Padma Lakshmi or my boyfriend, my metabolism is pokey to unexceptional.
My “secrets”? I eat less by just tasting a bit and sharing the rest (most of the time; sometimes really good stuff doesn’t make it to the sharing stage), and I exercise more via kickboxing classes at the gym.
Varsha 
sophia cook 
Vishal