The process of manufacturing energy in the human body is termed metabolism.
Metabolism is not the result of a single process but is the culmination of a series of processes including;
Eating of foods containing different nutrients.
- Digestion of foods into smaller macro-nutrients such as glucose, fats and amino acids.
- Absorption of the macro-nutrients from the stomach into blood stream.
- Transport of the nutrients to the cells
- Further chemical breakdown (oxidation) of fat and glucose to produce energy in two forms; heat and ATP.