Kelly Osbourne - Turkey Burger Fan Kelly Osbourne

Kelly Osbourne is obsessed with turkey burgers.

The presenter has shed more than 40lbs and is trying to stick to a low-carb diet, which she admits she doesn't find easy.

She said: "I'm on a bit of a turkey burger kick right now because I'm trying so hard to cut out as much carbs as possible. I used to live on bread and mashed potatoes.

"I can do the real no sugar because I don't have really a big sweet tooth, but the carbs thing is killing me!"

However, the 25-year-old star says she does slip up from her diet regime every once in a while.

She admitted to People magazine: "I had a pizza last night because I was so hungry. I was like, 'I don't care! I'm starving!' "

Despite being happy with her new slimline figure, Kelly is adamant she doesn't want to lose any more weight.

She said: "I'm very happy with how I am. I'm not trying to lose any more. I don't ever want to be one of those people who looks like a lollipop head.

"I've got a big jaw and I would very quickly look like one."