Nutritional value is defined as the degree of usefulness of the food product for realizing functions of human life, especially to satisfy the metabolic needs arising from the energy and physiological processes. The higher it is, the higher is its bioavailability (assimilability) and a smaller amount of its consumption. In the nutrients are included: proteins, minerals, fats, carbohydrates, vitamins and water. The nutrients in the body provide energy, are building material and perform regulatory functions of chemical processes. Nutrients available as nutritional supplements and concentrates and beverages and other at www.muscle-zone.pl