PART I - What Should I Eat?
The rules in this section will help you to distinguish real foods - the plants, animals, and fungi people have been eating for generations - from the highly processed products of modern food science that, increasingly, have come to dominate the American (blog note: and Canadian!) food marketplace and diet. Each rule proposes a different filter for separating the one from the other, but they all share a common aim, which is to help you keep the unhealthy stuff out of your shopping cart.
RULE #1 - Eat food.
These days this is easier said than done, especially when 17,000 new products show up in the supermarket each year, all vying for your food dollar. But most of these items do not deserve to be called food - I call them edible foodlike substances. They're highly processed concoctions designed by food scientists, consisting mostly of ingredients derived from corn and soy that no normal person keeps in the pantry, and they contain chemical additives with which the human body has not been long acquainted. Today much of the challenge of eating well comes down to choosing real food and avoiding these industrial novelties.
"Eat food. Not too much. Mostly plants."