French model Isabelle Caro has died of anorexia.

The 28-year-old fashionista - who appeared naked on a poster for an anti-anorexia campaign in 2007 - died on November 17 after being treated in hospital for 15 days for acute respiratory illness.

While her family initially wished for Isabelle's death to remain private, her colleagues have now confirmed the model passed away, with the exact cause of death unknown.

Her appearance in the 'No Anorexia' posters - which showed her weighing just 70lb - was banned in some countries, including Italy, and at the time the model spoke of how she wanted to use her illness to send out the message that using ultra-skinny models on the catwalk was dangerous.

She said: "I thought this could be a chance to use my suffering to get a message across, and finally put an image on what thinness represents and the danger it leads to - which is death."

In 2008, Isabelle wrote a book, published in France, titled 'The Little Girl Who Didn't Want to Get Fat', while earlier this year, she appeared on Jessica Simpson's VH1 series 'The Price of Beauty' to discuss body image issues and her struggle to overcome anorexia.

Her friends and family held a funeral for the model in Paris last month.