Dogs can eat peanut butter. Most dogs enjoy the taste and consider peanut butter a treat. It is also nutritious for dogs; it contains protein, vitamin E, vitamin B, niacin and healthy fats.
Raw, unsalted peanut butter without added sugar or salt is the best type to feed a dog. Smooth varieties are a better choice than chunky because they present less of a choking hazard. Hiding a pill in a glob of peanut butter is a good way to make a dog take his medicine, and a toy stuffed with peanut butter keeps a pooch busy licking for some time.