Kendall Jenner might seem like one of few high-profile models to be proud of her curves these days, but behind closed doors, she may be just as unhappy with the way she looks. A new report suggests Kim Kardashian's little sister might have an eating disorder after the drastic measures she took before her big debut at the Victoria's Secret Fashion Show earlier this month.

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According to OK! Magazine on Tuesday, the Keeping Up With The Kardashians star was so self-conscious about her looks that she took to eating very little in order to make sure she could keep up with the other models on the runway.

As one source close to Kendall dished, "She put herself on a strict 400-calorie-a-day diet, consisting of nuts and berries, and was constantly at the gym."

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Many friends in her inner circle worry that the brunette beauty might be getting too thin. In fact, they claim that this is the skinniest they've ever seen her and are afraid that things might get worse.

Apparently, Kendall is so determined to have the tiniest measurements possible that she even skipped the dessert at her own recent birthday party.

The insider added, "She didn't even indulge in her own birthday dinner meal! Kendall was the only one not eating. Her friends and family were all sharing plates, but Kendall kept pushing them away. She wanted her body to look absolutely perfect."

The tipster says now that the Victoria's Secret Fashion Show is over, Kendall's friends and family are hoping she'll start eating normally again and gain back the weight that she drastically lost over the last few weeks. As yet Kendall has not made any comments about the allegations herself.

Keep up with Enstars for all the latest news on Kendall Jenner and the entire Kardashian family right here.

Tags: Kendall Jenner