PART I: What Should I Eat?
RULE #17 - Eat only foods that have been cooked by humans.
If you're going to let others cook for you, you're much better off if they are other humans, rather than corporations. In general, corporations cook with too much salt, fat, and sugar, as well as with preservatives, colourings, and other biological novelties. They also aim for immortality in their food products. Note: While it is true that professional chefs are generally humans, they often cook with large amounts of slat, fat, and sugar, too, so treat restaurant meals as special occasions.
The following four rules (Rules #18 - #21) are a few useful variants on the human cooked-food rule.
"Eat food. Not too much. Mostly plants."