I've found that middle class Chinese people eat pretty well and insist on quality foods. When you are there I recommend that you never eat the western foods. I eat Chinese food and I stay away from US franchises to stay healthy/well. It is interesting to watch the people coming out of McDonald's, DQ, KFC or Pizza Hut...these are the places where you'll see fat people in China. I ate in a Chinese pizza buffet once...more food and pizza than the "Hut". I couldn't get over how fat the teenagers were...as fat as you'd see in the US.