Everyone wants to blame drug prices but let's not ignore the problems of obesity, diabetes, etc. Much of which is a result of urban sprawl, poor diet (both in food culture, and in crop subsidies), and poor work culture.
That's what I do too, but every once in a while you have to buy prepared food and the portion size, calorie count and amount of sodium / sugar in American food is simply staggering
Whole Foods has expensive food, together with a lot of outrageous health claims, but it's the industry black sheep in terms of health and sanitation.
Most supermarkets, for example require basic things like bathrooms and hand washing stations separated from food handling areas on agricultural farms that supply them with product. Not Whole Foods. There also have lots of issues with sanitation in their stores, especially given the volume they move from their salad bars.
I'm hoping that the Amazon acquisition will lead to some much needed professionalization and normalization of their supplier requirements and processes, but we'll see.