I used to only think about getting enough vitamins when considering a healthy diet. Today, I'm more concerned about things I don't want to eat.
I try to avoid food:
raised with with antibiotics, hormones, steroids, and insecticides;
preserved with sodium nitrite, propyl gallate, BHA, or BHT;
sweetened with high fructose corn syrup or any artificial sugar including aspartame or acesulfame-K;
spiced with monosodium glutamate (MSG);
enhanced with potassium bromate, bromated vegetable oil, trans fats, or olestra; or
colored with blue 1,2, red 3, green 3, or yellow 6.
I'd eat food with with the things above to avoid starving. However, there are alternatives out there if you look for them.
Coming soon: Chemicals in the Bathroom.