Carbohydrates can be either fast or slow absorbing. Supplements and nutritional products with slow-absorbing carbohydrates primarily function to supply the muscles with glycogen. Despite slow absorption, they provide energy to the muscles and promote muscle building. Products with slow-absorbing carbohydrates include Maltodextrin Maxy Waze and Vitargo. Supplements and nutritional products with fast-absorbing carbohydrates are particularly popular among athletes and those looking to increase their muscle mass.
For example, dextrose belongs to fast-absorbing carbohydrates. Dextrose is a monosaccharide with a high glycemic index and is often consumed with whey proteins after training to enhance recovery.