Richie gets weight loss treatment

The feud between Nicole Richie and her co-star Paris Hilton has ended

Reality TV star Nicole Richie has checked into a treatment centre to help her gain weight.

Filming for The Simple Life, in which she stars with hotel heiress Paris Hilton, has been postponed.

The socialite daughter of Lionel Richie has dominated magazine headlines because of her frail figure.

Richie's publicist, Nicole Perna, insists she does not have anorexia and just needs to focus on nutrition.

"It is important to Nicole that she achieves this goal in a healthy way as this is not a treatment for an eating disorder," she said.

"She is working with a team of doctors and specialists," she added.