Why are much of the poor in The United States fat?
Because they eat terrible food and cant afford good food.
I disagree with this statement.
Part of it has to do with the "car culture". And eating to compensate for something else, for example when depressed.
I don't think if quality food was cheaper people would eat less. In fact if this made any sense, people would already be doing because it costs the same or less to eat quality food in moderate quantities than to eat bad food in huge quantities.
You have a right to disagree but I disagree with your disagreement. There have been thousands of studies that show poverty results in not only bad food choices but terrible access to quality medical care.
Every person does things to cope with stress. Poor people typically are more stressed and tend to eat foods high in sugar to make themselves feel better. Sugar is literally a drug so it creates a dependency both mentally and physically. Sugary foods and drinks are cheap and plentiful. I remember when I was coming up we had liquor stores on every corner that sold terrible food, candy, and alcohol. If you wanted healthy food.you had to go to a grocery store that was at least 6 miles away.