Nicole Richie Seeks Help for Weight Issues
updated 10/27/2006 AT 06:45 PM EDT
•originally published 10/26/2006 AT 07:20 PM EDT
"Nicole Richie has decided to undergo diagnostic treatment to determine why she's not been putting on any weight," her rep tells PEOPLE in a statement. "She is working with a team of doctors and specialists whose focus is 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."
Richie's thinness has been the subject of much debate – which she addressed in May when she told Vanity Fair magazine, "I know I'm too thin right now. I'm not happy with the way I look right now." She also said at the time that she was consulting with a nutritionist and a doctor, but blamed her weight loss in part on the breakup with her then-fiance, Adam "DJ AM" Goldstein.
"She's tired of everyone saying you don't eat, because she does," a source close to Richie tells PEOPLE. "She wants to gain weight. It wasn't anyone saying you have to go do this – it wasn't an intervention. It was her saying I'm tired of people saying this about me, I'm going to go get some tests. It was a personal decision."
Richie, 25, is starring in the fifth season of The Simple Life, but production is on hold until she recovers, according to a rep for the show's studio.