Formulated to prevent muscle fatigue during grueling rides and marathon races, Hammer Nutrition Perpetuem Endurance Fuel delivers long lasting energy on rides lasting three or more hours. Each container has 16 servings of soy protein based fuel that's both gluten free and Vegan certified. Its carbohydrate profile doesn't contain any simple sugars, instead using a specific maltodextrin to provide roughly 87% of its caloric composition in long chain carbohydrates. Hammer Nutrition's XT soy protein isolate makes up almost 10% of Perpetuem's caloric profile, which is the same amount that's utilized from your muscle tissue during endurance efforts and marathon races. Other important ingredients include Energy Smart sweetener what's used in Hammer gel, as well as a de oiled super lecithin that's extracted from soybeans for reliable body fuel from stored fatty acids. Note that the Caffe Latte flavor contains caffeine for an extra boost during strenuous workouts.