cystine

例句：

1. 1.Cystine is a naturally occurring amino acid found in many foods and supplements.
   胱氨酸是一种天然存在于许多食物和补充剂中的氨基酸。
2. 2. In the body, cystine plays a crucial role in the production of glutathione, an antioxidant that helps protect cells from damage.
   在体内，胱氨酸在产生谷胱甘肽的过程中扮演着至关重要的角色，谷胱甘肽是一种抗氧化剂，有助于保护细胞免受损害。
3. 3. A diet rich in cystine can help support healthy skin and hair, as it is acomponent of certain proteins involved in these processes.
   富含胱氨酸的饮食可以帮助支持健康的皮肤和头发，因为胱氨酸是某些蛋白质的组成部分，这些蛋白质参与这些过程。