The body breaks carbohydrates from food into glucose, the primary fuel of muscles and the mind. (livescience.com)
If there aren't enough carbohydrates from food sources, the body gets its glucose from triglycerides by breaking down fat stores. (8fit.com)
3) Compared to exercising adults, exercising children burn lower amounts of storage carbohydrate, but higher amounts of carbohydrate from food sources. (bengreenfieldfitness.com)