After the expedition, Odell was privately certain that Mallory and Irvine had reached the summit of Mount Everest. Key to this belief was the spot where he had seen the two climbers, and his evaluation of their fitness and strength.
Carbohydrate is stored in limited amounts as blood glucose, liverglycogen, and muscle glycogen. The largest amount of energy isstored in the body as fats. Fats are stored as triglycerides in bothmuscle tissue and adipose (fat) tissue; triglycerides and free fattyacids (FFA) in the blood are a limited supply.
Since calories are simply a measurement of energy, this question could be re-worded to ask, How does the body use energy?. Obviously, the body uses energy to perform all of its functions. If we consume more energy (calories) that our bodies need, the excess is stored as fat.