The metabolism is the process (rate) by which the calories in your body turn food into energy. Do not misunderstand that the metabolism is largely dependent on the weight you have. Weight depends primarily on the balance between calories consumed and calories burned. It can be defined as an engine that burns calories and a scale that regulate caloric needs.
Metabolism involves three essential elements:
1. Basic Needs
These are known as basal metabolic rate and includes calories needed to sustain vital body functions. In a person, forming a basic metabolic rate 66-75% of total daily calories needed. In other words, the BMR is quantity of minimum energy (expressed in calories) that your body needs to stay alive in conditions of bed rest.
2. Digestion and absorption of food
Approximately 10% of total daily calories are digested and absorbed by the body. Somewhere may sound ironic, but it takes calories to burn calories.
3. Physical activity
The amount of calories burned depends on how much exercise you do every day.
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