Planning and prepping are key to a successful Keto Diet. Really, it is key to any good eating plan. It’s the biggest mistake to wait until your starving, standing with the refrigerator door open, begging it to miraculously provide something delicious and nutritious and only then to figure out what your going to eat. This usually ends up with cookie dough from the freezer and someone’s leftover pizza being stuffed into your face while you stand over the kitchen sink.