Are we honestly supposed to buy this? Maybe we would if she was a normal girl, but she's a supermodel who gets paid to be skinny!

Gigi Hadid has lost a shocking amount of weight in the past year, but the catwalk insists it's the result of a thyroid disorder. The model of the moment told Elle that she suffers from Hashimoto's disease due to hypothyroidism, a condition that slows the metabolism. Consequently, the medication she takes speeds up her metabolism and makes it difficult for her to keep on weight.

"My metabolism actually changed like crazy this year. So for the VS show I didn't want to lose any more weight," she told the mag.

Despite having some seemingly large medical problems, the blonde beauty hasn't let those get in way of her exploding career. "You know, I've never taken a sick day. I feel that pressure of not taking time for yourself because you don't want it to affect your professionalism,' she added.

We hope she hasn't fallen victim to the unrealistic image expectations of the fashion industry.