Mulebar refuel protein bars 65gthey say protein is the building block of life as it helps recovery but how many of those horrible protein shakes can you stomachdeveloped in 2008 after feedback from their hungry mules the refuel high protein bars have been stacked with 20 proteinwhich can aid the growth and maintenance of lean muscle mass the bars are the only fairtrade protein bars on the uk market and are designed to look and taste more like a chocolate bar than a performance bara heady i