Look Great, Feel Good in 2013
Hollywood's Weight-Loss Winners!
Kirstie Alley, Kellie Pickler, Jonah Hill and more share the slim-down secrets that really worked
Credit: Andy Fossum/StarTraks; Evan Agostini/AP
Updated: Wednesday Dec 21, 2011 | 03:00 PM EST By: Eloise Parker
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JONAH HILL
Lost 40 lbs.!
"I was living like a frat guy," the Moneyball star said of his former diet of beer and burgers. Deciding overnight to change his habits, the 27-year-old actor told Kidd Kraddick in the Morning he "went to a nutritionist and started running instead of emotional eating." Showing off his lean new physique, the 5 ft., 7 in. actor says he even makes time to squeeze in "100 push-ups a day."

