Sis protein bars contain a blend of easily digestible proteins 20 grams per bar in the form of whey casein and soy proteinit is important to consume protein in close proximity to training sessions ie before or after training in order to maximize training adaptationsprotein intake is often overlooked by endurance athletes so this convenient bar option can help provide an appropriate quantity of high quality protein for before or immediately post exerciseadapting to the demands of endurance