What an interesting collection of shots...getting a visual really drives home the differences not only in quantity but in fresh v. processed/packaged. The photographer's web site also has these images as part of a "Food" gallery, and includes a note about where each picture was taken. Click on "Food" on the listing to the left.

and here is a link of the photos(with noted permission to pass along) with $values:

http://menzelphoto.com/misc_linked/HPContents.pdf