Most Essential Nutrient
I think carbohydrates are important because it is key to energy, stamina, speed, concentration, and better fluid balance. Carbohydrates are thought of as gas for a car. Without the gas, you wouldnt be able to go. The functions are providing energy and regulation to the blood. Sparing the use of protiens. Breaks down fat acids. Flavors and sweetens your food. Dietary fibers.