30 營養與頭腦發育 在成人，這些必需胺基酸包括白胺酸、異白胺酸、纈胺酸、離胺酸、色胺酸、羥丁胺酸、苯丙胺酸及甲硫胺酸等八種，嬰兒還需組織胺酸（histidine），早產兒則需胱胺 ...
What Are the Essential Amino Acids? - Chemistry - About.com In addition to the essential amino acids, babies and growing children also need arginine, cysteine and tyrosine. Individuals with phenylketonuria (PKU) need ...
