Non-essential amino acid. Improves fatigue, increases stamina and cellular energy. Used by athletes because it increases endurance. Aids in the excretion of harmful ammonia by absorbing them and removing them to the bloodstream.
An organic acid containing nitrogen chemical building blocks that aid in the production of protein in the body. Eight of the twenty-two known amino acids are considered "essential," and must be obtained from dietary sources because the body can not synthesize them.