Another way I've heard it stated: "single ingredient foods." And as you prepare them, try to keep them that way. For example, adding a ton of butter to potatoe

Another way I've heard it stated: "single ingredient foods." And as you prepare them, try to keep them that way. For example, adding a ton of butter to potatoes makes them 10x less healthy. More or less, calorically they become fries. Fries taste great but they should be an occasional treat, not a staple.