dietary ingredient

例句：

1. 1. The new diet requires a balanced intake of all dietary ingredients.
   新的饮食要求均衡摄入所有膳食成分。
2. 2. The study found that some dietary ingredients can affect the body's metabolism.
   研究发现，某些膳食成分会影响身体的新陈代谢。
3. 3. The doctor recommended that she avoid certain dietary ingredients that could be harmful to her health.
   医生建议她避免某些可能对她健康有害的膳食成分。