I have noticed a lot more 'black' cabs where I live. One advantage of the little guy now owning a car. They will negotiate, some are greedy just find the next one. They actually line up like a taxi rank where I live.

Enough water for 9 months.

I agree that the problem is related to the moving away from the Paleao diet. The big shift seems to be more meat (they love high fat cuts), more oil, more noodles, and perhaps more than anything more rice.
Western fast foods, do not exist in my wife's hometown, diabetes, is a major problem there too. The people are also more active than I see in Kuming. The key change in their life has been more affluence.

The population is eating a lot more food generally than they did before. Blaming obesity on western fast food is easy, but I am not sure there is solid causality. Western fast-foods arrived arrived at the same time as more affluence.

The affluence coincided with more processed foods (a western style diet, but not fast foods, or western corporations). Perhaps it would be fairer to call this a developed countries bad diet.

In the supermarket we can see how much store space is dedicated to high fat,high sugar, snacks. These are mostly home market products. Some of the local drinks are much more prevalent than Coke, and have more sugar in them. For the supermarket it is a no brainer what to give shelf space to, as these foods all have high profit margins.

Buying oil and meat used to be a luxury. Now everyone can afford much larger portions, and more frequent consumption of both. My mother in law will admit to consuming more meat in some meals now than she used to get in a month. In the past her main source of oil was rendered animal fats, vegetable oil was store bought and rare.

I see my kids in school. Half of them have parents who understand nutrition, and the kids are consuming a Paleo diet. The other half consume a lot of high carb snacks between meals and eat huge portions of rice and oily foods at the canteen. WangLaoJi is seen as a semi-medicinal stimulant.
Or could draw a correlation between student diet and performance, but that would be unreliable as the kids on a healthy diet have parents who seem to make better choices generally. The educational attitude may also reflect the family values.

Yes, when I first came to China 10 years ago I would maybe see one morbidly obese person, usually a pre-teen, about once per month. Now I see many more daily, and I also see more morbidly obese adults. You can't blame this all on western fast food.
I will use about 5 ltr of oil per year, mostly for baking bread, and less than 1 ltr for frying food. I see a neighbor coming home from the supermarket with that much every week.
People also think Asians are skinny because they eat rice. But rice is a simple carb. Lots of rice leads to fat. Add to that all the oil and sugar.

As for sedentary life, it is a problem, but 11% of the popn. do not live a sedentary life.

Yankee
They were waiting until you moved to open the bit up BJ Lu.
;-)