Superslim Princess Beatrice keeps shedding pounds thanks to 'water and fruit diet'

Is Princess Beatrice yo-yo appears to know no limits?

The 22-year-old has struggled with his weight in the past, turned more than a few heads this weekend with her incredibly slim silhouette, which seems to have declined more than ever.

Beatrice, who shed 2st before the London marathon last year, unveiled his body even thinner than she attended a polo event at Cowdray Park in West Sussex on a short blue dress belted cocktail.

It was a striking contrast with great color dress like she wore it two years ago.

It now looks like at least two sizes smaller, and credits a fitness regime based on exercise, plenty of water and plenty of fruits and vegetables, keeping weight.

It is far from the photographs taken less than flattering of the princess in a bikini on the beach in St Barts in 2008.

Speaking about the pictures, "she said at the time:" I probably could not lose the strange book that while it may be the kick I need.

"It was an unflattering bikini and I have one that is so much nicer, so I can set myself to wear it.

"I thought people were just average, even though I know it comes with the territory.

"The problem is that I do not have much confidence that it can be very disturbing."