Karl Lagerfeld thinks exercise is boring.

The fashion designer lost 90lbs ten years ago after switching to a strict diet of steamed vegetables and Diet Coke and said he wouldn't go back.

He said: ''No cheese, no butter, nothing. But I'm perfectly happy with that. My chefs are great so it tastes beautiful.

''People who are obsessed with exercise, they are brainwashed. It's a bore. People exercise because they eat a lot. I don't eat that much so I don't have a lot to get rid of.''

And when it comes to relaxing, Karl doesn't like to travel, saying it's a ''nightmare''.

He added in an interview with British In Style magazine: ''It's not an adventure anymore. Everything is made to the taste of the tourist.

''I am not a holiday person. I prepare the collections; I read. I am not on a boat in the sun. It's my victims [his staff] who are on holidays, not me.''

Karl also revealed he has ''no times'' for social media, despite owning four iPhones and his cat Choupette having her own iPad.