D-Valine
Valine provides numerous benefits like improvement in insomnia and nervousness. Besides, it is also proved to help alleviate disorders of the muscles, and to be an effective appetite suppressant. This amino acid also greatly improves the regulation of the immune system, but probably the greatest benefits of Valine are experienced by athletes performing long-distance sports and bodybuilding, because this amino acid is important for the muscle tissue recovery and for the muscle metabolism, while increasing exercise endurance.