Generally the energy bars have a sweet taste (also due to the high percentage of carbohydrates), with a low fat and protein content. As the name suggests, energy bars have the function of providing energy, they are frequently used in sports thanks to their practical use and relative high digestibility (essential in snacks and in the integration during the performance)
Although not as digestible as a drink or a gel, energy bars can be consumed with a certain freedom both before and during the performance, while to promote recovery it is important enough that they are taken in the immediate post-exercise period.