Energy, providing physical activity and activity, is formed by the chemical bonds of food. The ways of accumulating energy and its distribution in the body are numerous and diverse. Energy provides the activity of cells and the reduction of muscle fibers. Exercise, based on factors such as the speed of contraction of muscle fibers, depends on the presence of energy in the muscle fibers, so the conservation and transfer of energy are the determining factors in the performance of physical exercises. These processes largely depend on the consumption of nutrients!