25 Shocking Celebrity Weight Changes
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.
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