25 Shocking Celebrity Weight Changes

A look at fad diets celebrities have used to shed or gain weight fast.
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Jared Leto

The actor gained 60 pounds to play the role of John Lennon's killer in the film Chapter 27. The sudden and dramatic gain left him with severe gout-like foot pain.

Leto, 41, told the New York Daily News that he "gorged and force-fed" himself to put on the pounds. He said it took over a year to feel like he was back to normal and won't be gaining weight for a role again.

Next: Charlize Theron

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