Rxbar Peanut Butter (12X1.83 OZ) Rxbar Peanut Butter (12X1.83 OZ) RXBARs are whole food protein bars with just 6 to 8 ingredients and no best No GMOs no gluten no soy no dairy. Egg white protein is our whole food protein source contributing 12 grams of high quality protein to every bar. We celebrate ingredients. Our whole reason for being our difference is our strict adherence to whole food ingredients. We don't want anybody to have to search labels to find the whole food protein bar they're looking for so we put our core 4 ingredients on the front of the package. RXBARs make you feel great and keep you healthy on the go because they are all natural and prescribed by nature!