Potatoes are not strictly “paleo.” They tend to fall into the “paleo-ish” arena in that it’s better for you than other non-paleo foods, & can sometimes fit into Mark Sisson’s “primal” variation of the diet. That said – if you want to stay strict paleo – substitute potatoes with sweet potatoes instead. Also – note that the starches in potatoes can cause high blood sugar spikes so if you’re trying to eat paleo in order to lose weight, you’ll want to stay away from potatoes all together.