Yeah he sure has fluctuated quite a bit, and I'm sure the fact that people seem to definitely like him fatter in comic roles has a great deal to do with it. We've always known him as fat since 40 Year Old Virgin, and that's how people think he's funny, he rose to fame as a funny fat guy. And there's been no proof that he has Prader Willi syndrome like the other poster wrote. His weight has just dramatically fluctuated the past couple years like a lot of obese people do all the time, and I hope for his sake he can stay busy and not have to be super fat to do it.

No, he has Prader Willi Syndrome.