But Butler is adamant there is no worry about his health as he's not as small as he may appear. The 41-year-old told E! News: 'If I wear a long shirt, everyone says 'Oh my god, he lost so much weight!'
'But this is how I look. I just used to be a lot bigger. But now I'm surfing. I'm doing a surf movie so I have to slim down. I don't know...maybe I'm sick or something!'
He then joked: 'I ate my last meal in October and I run about 40 miles a day.'
