I'm constantly feeding my metabolism. But at the same time if I want to go one night and have a nice dinner then I won't sweat it the next day.

I can't sleep in the evenings. Most of the pictures people see of me are me going to work events: a Fendi dinner one night, a Prada dinner the next, and working all day.

I know that when I get stressed, I want to eat junk food. So now I just know - 'I'm stressed, I want to eat junk food, so I'm going to go work out instead, or eat something healthy.' It really works.

Nothing would make me happier than to train the next winner on 'The Biggest Loser' because it means the world to me. Everybody has a fighter inside them, they just don't realize it.

I'm the type of person who can get a feel for what you need and what I need to do to push you to get you to a breaking point, where you realize that you can't go on this way anymore, that the reason you're heavy is because you're ignoring all the stuff that's going on inside.

I don't care who you are or what you have gone through - everyone has something they are fighting for.