What is the protein content in RXBAR Kids? Our RXBAR Kids bars contain 7g of protein per bar. Find full nutrition and ingredient information on the bottom of this page. Buy kids protein bars here Related articles Why is my RXBAR lighter in color? What is the sodium content in RX Nut Butter? What is the shelf life of RX Nut Butter? Is RXBAR Kids Kosher certified? What makes RX A.M. Oats different?