Nicole Richie is denying speculation that she underwent gastric bypass surgery and then had the operation reversed

Rumors began spreading this week after the New York Post ran a blind item claiming a "Hollywood starlet" had gastric bypass surgery – and then, after losing too much weight, went in to have the gastric band removed. The Simple Life star's rep says that reports linking Richie to the blind item are "ridiculous." "It is not Nicole," her publicist says. "There are a ton of 'Hollywood starlets.'"

Richie's thinness has been the subject of much debate. She had dropped to around 90 lbs. – making her extremely thin, even at 5'2." Last month she decided to undergo diagnostic treatment for her inability to put on weight.

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