14. Zach Galifianakis
For a long time, Zach was a pretty big guy. As such, his weight became the butt of several jokes on The Hangover and Between Two Ferns. However, Zach decided to quit drinking for good in 2014. This was the beginning of his transformation. While talking to Team Coco, Zach revealed that the reason he decided to stop drinking was a nasty run-in he had with some jerks who were driving a jaguar. It made him make some drastic changes in his life. He has since lost 50 pounds.
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