I was in India for 6 months, so I know what it is like to not know the nutrition of what you're eating. I handled it by limiting my portions and eating what I knew. Vegetables are pretty straightforward, and even if you underestimate how the portion, it won't effect your calorie count too much. Even if you estimate a 1/2 cup but take a cup, it will still only add around 30 calories depending on the vegetable. For grains, I would try to take less then I estimated and count it that way. I would only eat 1/3-1/2 cup of rice at every meal. Finally, there are options like subway and McDonald's in China, so I would choose those. I would also give up a desire to try lots of different foods. It was exciting to me that there were lots of choices, but I would only try one little tiny bite, and stick to my rice and veggies. I also made guidelines like only eating 1/2 to 3/4 the serving at a restuarant because i knew that the serving was too large, even if i didnt have exact numbers. Also, limit when you eat. Decide not to snack or eat past a certain time. Even if you can't count calories, general choices can help you.