Energy needs of the organization

Behind their apparent variety, food or boil down all become some classes of nutrients. There are carbohydrates, proteins, lipids, which must be added a few essential items such as vitamins, minerals and water.

Before studying in detail these various nutrients, first some general ideas on the needs of the organization and especially the calories. They are the universal unit of measurement of all foods, and measure exactly our needs for food and our energy costs.

Besides the elements essential for growth and life of the body, foods provide energy, which is calculated in calories. These can replace the energy expended by the organization in its dealings with the outside environment.

The amount of energy we need every day to cover basic expenses of the organization and those of muscular effort or the fight against the cold.