chemically defined diet

例句：

1. 1.A chemically defined diet is one that contains only the essential nutrients for optimal health.
   一种化学定义的饮食是只包含对健康至关重要的必需营养素的饮食。
2. 2. The doctor recommended a chemically defined diet for his patient's recovery.
   医生推荐了一种化学定义的饮食来帮助他的病人康复。
3. 3. She followed a chemically defined diet to lose weight and improve her digestion.
   她遵循了化学定义的饮食来减肥并改善她的消化。