and you care about your food, you should see this:
http://www.youtube.com/watch?v=I-t-7lTw6mA It's a Google author talk with Michael Pollan, the author of "The Omnivore's Dilemma" and "In Defense of Food". He's a fun speaker, and make s a lot of great points.
And if you don't have an hour try at least 35 minutes or so-that's the bulk of the talk. It will give you a lot of food for thought, no pun intended.