#3 Avoid food products containing ingredients that no ordinary human would keep in the pantry.
Ethoxylated diglycerides? Cellulose? Xanthan gum? Calcium propionate? Ammonium sulfate? If you wouldn't cook with them yourself, why let others use these ingredients to cook for you? The food scientists' chemistry set is designed to extend shelf life, make old food look fresher and more appetizing than it really is, and get you to eat more. Whether or not any of these additives pose a proven hazard to your health, many of them haven't been eaten by humans for very long, so they are best avoided.
#19 If it came from a plant, eat it; if it was made in a plant, don't.
#36 Don't eat breakfast cereals that change the color of the milk.
This should go without saying. Such cereals are highly processed and full of refined carbohydrates as well as chemical additives.
#39 Eat all the junk food you want as long as you cook it yourself.
There is nothing wrong with eating sweets, fried foods, pastries, even drinking soda every now and then, but food manufacturers have made eating these formerly expensive and hard-to-make treats so cheap and easy that we're eating them every day. The french fry did not become America's most popular vegetable until industry took over the jobs of washing, peeling, cutting, and frying the potatoes—and cleaning up the mess. If you made all the french fries you ate, you would eat them much less often, if only because they're so much work. The same holds true for fried chicken, chips, cakes, pies, and ice cream. Enjoy these treats as often as you're willing to prepare them—chances are good it won't be every day.
#47 Eat when you are hungry, not when you are bored.
For many of us, eating has surprisingly little to do with hunger. We eat out of boredom, for entertainment, to comfort or reward ourselves. Try to be aware of why you're eating, and ask yourself if you're really hungry—before you eat and then again along the way. (One old wive's test: If you're not hungry enough to eat an apple, then you're not hungry.) Food is a costly antidepressant.
#58 Do all your eating at a table.