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Jonah Hill is waving the pounds goodbye!

We all know the actor, 27, has lost a ton of weight since his Superbad days - some reports say nearly 40 pounds! - but the Moneyball star is truly a new man.

Jonah went out to lunch in Hollywood Thursday, and there's no doubt that he had a healthy meal. After all, the formerly husky funnyman has been working on slimming down for months in order to get ready for his role in the upcoming action movie 21 Jump Street.

Jonah recently told the Los Angeles Times that losing weight hasn't been terribly enjoyable, saying:

    "I wouldn't say it's the most fun endeavor I've ever took on in my life - but it's important. And I'm enjoying it. If I eat something unhealthy now, I kind of feel a little weird and my body hurts."


Not only that, the 5'7" star looks blonder than usual, too! Talk about a total body makeover.

Having trouble remembering what Jonah looked like just last year? See a before pic ... after the jump.