Lindsay Lohan revealed the shocking extent of her recent weight loss as she shopped for clothes at the weekend.

The actress - whose weight has fluctuated dramatically over the years - looked unhealthily thin as she wandered around a shoe store in New York with her mother Dina and sister Ali.

The Mean Girls star's spine and shoulder-blades were painfully visible as she tried on clothes, whilst her waist and thighs were almost non-existent in a grey leotard teamed with her trademark leggings.

Lindsay was plagued by speculation that she suffered from an eating disorder back in 2005 when her skeletal frame made headline news.

But since then the actress seems to have kept a conscious eye on her weight, even commenting on how ugly her formerly-skinny self looked.

She told Allure magazine in 2006, "Sometimes being that thin doesn’t look healthy. I kind of didn’t realize that."

“It was an attention thing, too. [But] you start to wonder if your friends are your friends because you look a certain way.”