Training packs provide nutrients, vitamins and minerals for those serious about body building and serious athletes. Exercise depletes a number of components that are necessary for not only regular metabolism, but also are key for body builders to get the results and recovery they are looking for. Intense training requires a different set of nutrients such as vitamins, minerals, amino acids, and fats to maintain a healthy body than those who do not put their bodies through such rigors. Ensuring that your body has enough of these different components to feed your muscles and maintain energy is important to see the body development desired.