PRINCIPLES AND PRACTICE The paleo diet is considered to be the native human diet, to which we were genetically adapted about ten thousand years ago. Also called the Caveman, Primal, Hunter/Gatherer and Stone Age Diet. PALEOLITHIC FOODS Lean meat and fish, ideally organic meat and wild (not farmed) fish, A wide variety of leafy vegetables with no exclusions, Vegetables - excluding potatoes, but including sweet potatoes, Fruits - primarily berries and fruits native to the count