Carbohydrates have many uses in the body and there are many reasons why you might want to supplement with carbohydrate supplements. Some people may want to add carbohydrates to their protein supplement or weight gain powders to add additional calories to help gain weight. Maltodextrin, as found in CNP Pro Fuel is one of the most popular carbohydrate supplements because it has many uses and others such as Starch, as found in PHD Waxy Vol are extremely good for carb loading in preparation for Endurance events and can also be used to improve the uptake of creatine supplements