肌氨酸 Sarcosine 可以提高人的智力，尤其對于像學生考試這種需要“臨時的場合”效果更明顯。補充肌氨酸 可以增長肌肉無氧力量和爆發力。肌氨酸在肌肉中以磷酸肌酸的形式存在，人體在高強度運動時主要靠ATP 提供能量， 但人體內ATP 儲備量很少，需要不斷的合成，而磷酸肌酸可促進ATP 的合成。 Sarcosine is the N-methyl derivative of glycine. Sarcosine is metabolized to glycine by the enzyme sarcosine dehydrogenase, while glycine-N-methyl transferase generates sarcosine from glycine. Sarcosine is a natural amino acid found in muscles and other body tissues. In the laboratory, it may be synthesized from chloroacetic acid and methylamine. Sarcosine is found naturally as an intermediate in the metabolism of choline to glycine. Sarcosine is sweet to the taste and dissolves in water. It is used in manufacturing biodegradable surfactants and toothpastes as well as in other applications.