Looking for our protein bars in the UK? RXBAR UK sells all of our protein bar flavors currently for sale in the UK. RXBAR egg white protein bars are made with a few simple ingredients and are perfect for breakfast on the go, as protein-packed snack bars, or as a pre/post-workout fuel. Inside each one you'll find three egg whites, two dates, and a few other simple ingredients. Try an RXBAR today and see what these protein bars are all about.