I would imagine protein.
Carbohydrates supply glucose as the main source of energy for the body.
Water does not supply calories to the/our body.............
The Nutrient That Doesn't supply calories to the human body is the water.......
the metabolism extracts energy from food
Protien
carbohydrates
Glucose is the preferred energy source.
sugar that is available in your blood stream gets used up first, then glycogen thru glycolysis breaks down, to supply the energy. After all sugar has been used, fat will be the next to be burnt by your body
Yes. Proteins are needed in large amounts by the body, as protiens are used primarily to build and maintain body tissues, which you have a lot of.
Protein.
carbohydrates
no