This problem sounds like it could be most effectively addressed by having someone go shopping with you and narrate what they're doing. Where do you live?
Knoxville, Tennessee.
Edit: Um... or did you mean, the type of area in which I live? Suburbs, mostly chain stores, except for the one privately-owned one. Near a college / city. There are some "organic" stores, and also a few farmer's markets.
With Alicorn's permission, I'm resurrecting this thread.
I'll start off with one of my own: What kinds of exercise can I do at home (I do have 5- and 20-pound weights), and what are good ways to get motivation to do so regularly?