A boy enjoys his lunch after working out for a whole morning at a summer camp which aims to help obese children lose weight in Zhengzhou, Henan province, on July 14, 2013. The camp diet was tailor-made to be low fat as well as nutritional. [Photo by Zhang Tao/Asianewsphoto]

Children eat watermelon to cool down from the summer heat at a "fat camp" which is designed to help them reduce weight in Zhengzhou, Henan province, on July 14, 2013. [Photo by Zhang Tao/Asianewsphoto]