Today buying food and feeding yourself and your family is a maze of chemicals. Eating for the average American family is completely different from 30 years ago. Instead of food grown locally with organic methods and prepared in the home ,we now feed ourselves and our families a smorgasbord of chemicals. This is all in the name of profit, using flavor enhancing chemicals that are excitotoxins and cause diabetes, dementia and parkinson's disease. These chemicals also increase cancer growth. One of the champions of whole organic foods is Dr. Max Gerson. A wonderful link to a video about his work , The Beautiful Truth, was created by Garrett, a 15 year old Alaskan youth, who was home schooled. http://vids.rationalveracity.com/v/677,the-beautiful-truth.html
Another look into how the world eats and the differences in varying cultures is Peter Menzel's book Hungry Planet http://www.amazon.com/Hungry-Planet-What-World-Eats/dp/1580088694/ref=sr_1_1?ie=UTF8&s=books&qid=1247182086&sr=8-1
This is your challenge today , if you only have time for one thing, start looking into eating more simply, ingredient lists should only have the product and water. If you see more than 3 or 4 ingredients ( ie beans , water, salt ) you are probably eating things you really don't want in your body and the bodies of your precious family.