Kate Middleton's recent trip to North America has catapulted the commoner-cum-duchess to global stardom.

She's a fashionista and a role model to young girls.

But according to one anorexia expert, that's not a good thing.

You only need look at the pictures from the current visit to Canada to see that she really has lost a lot of weight and that she's bordering on anorexia, Fabiola De Clercq, founder of Italy's Association for the Study and Research of Anorexia, told India.tv.

As happens increasingly often in the case of fashion models, the young duchess's appearances risk becoming an advert for anorexia, De Clerq added.

Netizens are also questioning Kate Middleton's weight loss, saying the duchess is too thin.

One blog states, As far as opinions go, some publications have gone so far as to bring in experts to analyze whether Kate's weight loss was healthy, she lost the weight too quickly, she has an eating disorder, and this was all caused by stress. The overall conclusions . . . are that Kate's weight loss was healthy, and that she lost it very slowly, which was healthy as well.

The blogger continued on to say, What is disturbing though, and what the media has glossed over, is that Kate was very thin before losing any weight - flat abs and everything! She looked healthy, had a fabulous figure, and didn't need to lose anything to begin with.

But not everyone is in agreement. Some believe that Kate Middleton's weight loss is being targeted simply because she's in the public eye.

Kate is a public figure and people will criticize her for being too thin or too fat, and that in the public's eye, she'll never be perfect, according to OK Magazine.

Even celebrities are coming out to defend Kate. Selma Blair defended Kate to ET saying that she looked healthy and beautiful. Taraji P Henson said Kate looks fine [and] looks healthy.

Here are photos of the duchess before and after her reported weight loss.

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Kate Middleton (L), then Prince William's girlfriend, attends the first race on the final day of the Cheltenham Festival horse racing in Gloucestershire, western England March 16, 2007. Catherine, Duchess of Cambridge (R), visits a centre for homeless young people in Quebec City during a royal tour of Canada, July 3, 2011. REUTERS
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