Nice visual breakdown of the world's eating habits. Not surprising, but still interesting. Looks like the U.S. and the U.K. are clear winners on processed food! The book where these photos come from ('Hungry Planet: What the World Eats') is from 2005, so the prices are probably a little dated.

http://www.fixingtheplanet.com/one-weeks-worth-food-around-our-planet

An interview and a breakdown of prices:
http://www.npr.org/templates/story/story.php?storyId=5005952