Proteins are fundamental for the construction, repair and maintenance of the tissues in our body. Whenever any muscle tissue is damaged and in need of repair, the body will use the absorbed amino acids to this effect. The sooner one is able to replenish his protein storage after a training session, the better. When protein ingestion and strength training are combined, they stimulate an increase in lean muscle mass, as well as muscular strength and volume. In turn, bigger and stronger muscles help to improve athletic performance.