The Peanut Butter and Smooth Caramel Protein Bar from ProtiDiet is a high protein bar (15 grams of protein) has only 140 calories and 4.5 grams of fat. ProtiDiet’s Peanut Butter and Smooth Caramel Protein Bar will fill you up and keep you satisfied, all without any of the aftertaste found in some bars. IPA Unrestricted!