Creatine supplements have been used by body-builders and serious athletes to boost performance and muscle growth for many years. Creatine is a natural substance used by skeletal muscles as energy for contracting. Since the early 1900's it has been recognized that supplementing your diet with creatine supplements raises the amount of creatine found in the muscles, leading to better muscle growth, decreased muscle deterioration, and increased power and performance for anaerobic activity due to higher and faster energy creation in the skeletal muscle. Studies have shown that creatine, particularly in short-term use, can be safely and effectively used as a body-building supplement. Other studies have shown added benefits to vegetarians, such as heightened memory and cognitive function.