If You Watch One 20 Minute Video About Food...

Watch this one:

http://bitten.blogs.nytimes.com/2008/05/15/whats-wrong-with-what-we-eat/#comment-6698

In typical Mark Bittman style, he lucidly and entertainingly outlines a very simple solution for much of what is wrong with the modern Western diet, and therefore the world. The short version: eat half as much meat.