Giuliana Rancic has become the latest victim of cyber bullies who have labeled her too skinny.

The E! presenter is defending her slender frame by insisting she is healthy, but has a fast metabolism.

Giuliana Rancic, 39, responded to criticism over her weight in an interview with HuffPost Live, admitting that she was dumbfounded why so many people are fascinated by her tiny frame.

Giuliana Rancic has hit back at cyber bullies who have labeled her too skinny

She said: “I know the truth.  Know that I eat a lot and I take walks and I have a faster metabolism.”

Giuliana Rancic decided to speak on the matter after receiving a barrage of negative comments after posting a photo of herself and Jack Osbourne taken during filming for Dancing With The Stars on Twitter.

In the picture Giuliana Rancic’s figure is dwarfed by the father-of-one, which prompted a flurry of tweets from followers urging the mother-of-one to eat more food.

“All these people were commenting, <<She’s so skinny, eat a sandwich, eat a burger>>, and it was interesting,” she added.

“I don’t respond but so many people get really upset and they’re like, <<Oh really? Eat a sandwich?>> What a great comment. Or people say, <<She’s been through cancer>>. Really? That’s what you’re going to put out?”

Giuliana Rancic, who beat breast cancer two years ago, seemed happy enough to shrug off the comments, adding that she would only feel upset if there were any truth to them.