What is the protein content in RXBARs? On average, the ingredients in our standard bar contains 12 grams of protein per bar. You can find all nutritional information in the attached document or by visiting each product page. Shop RXBARs Related articles Can you freeze RXBARs? Why is my RXBAR lighter in color? Can I eat RXBARs past their Best By date? What is the sodium content in RXBARs? How much caffeine is in RXBARs containing chocolate?