Understand what carbohydrates are and how the body uses them.
Carbohydrates are a type of macronutrient found in certain foods and drinks. Carbohydrates are used for energy. The four primary functions of carbohydrates in the body are to provide energy, store energy, build macromolecules, and spare protein and fat for other uses. Glucose energy is stored as glycogen, with the majority of it in the muscle and liver