It's not just industrialized preprocessed and prepackaged food, because restaurants are guilty of this too.
I don't buy the "cars and suburbs" as a root cause argument. People would be less sedentary if they felt healthier and more energetic.
Sugar is the problem.
Until you drift out to the outer boroughs where cars are more convenient, that is.
Also I think that the assertion that "people would be less sedentary if they felt healthier" requires evidence. Some people who feel healthy and energetic would still rather sit down and play videogames.
Any fitness system that requires carving time out of the day is doomed to failure; what works is fitness that is built into the things people already do. In other words, if you walk or bike everywhere, you don't have to make time to work out.
It sucks that this is as commonplace as it is.
I imagine you'd have an easier time at the nearest German restaurant. Not sure what they even could put sugar into and have any positive impact.
Why? I didn’t think the connection between infrastructure and transportation was particularly controversial. Also, real world problems often have multiple causes…