I would say it had to be the western restaurant Arnold -it seemed I was in better health in China than in the States (I think we eat to much meat here in the States) at least I do.
The rice,noodles, fruit, and vegetables with every meal made me feel better than I have in years,and the fact that Ping would feed me or at least keep filling my plate up was a real ego boost as well.
As far as the squat toilets were concerned-I never defecated in one, it was hard enough just trying to squat when I urinated in them
just kept peeing on the wall watching it roll back into the toilet