caloric quotient

例句：

1. 1. The food is high in calories and low in nutrients.
   这种食物高热量，低营养。
2. 2. The study found that the caloric quotient of the new diet was lower than the old one.
   研究发现，新饮食的卡路里比旧饮食的低。
3. 3. The caloric quotient of the protein can be used to estimate its energy content.
   蛋白质的卡路里比可以用来估计其能量含量。