Is RX Nut Butter paleo-friendly? Plain Almond Butter, Vanilla Almond Butter and Maple Almond Butter are paleo-friendly. Shop RX Nut Butter here. Related articles Is RX Nut Butter keto-friendly? Are RXBARs paleo-friendly? Is RX Nut Butter compliant with the Whole30® program rules? Are RX A.M. Oats gluten free? Is RXBAR Kids Kosher certified?