7. Jason Segel

Jason Segel

Jason Segel is another celebrity who lost major weight! In 2012, he shed some pounds to score the lead role in The Five-Year Engagement. "I was told that it had to be conceivable that Emily Blunt would ever choose me to be her husband," Segel told David Letterman in a 2012 interview. LOL! Since then, he credits his weight loss to "living healthy, exercising, and eating right."

America Ferrera
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