It does sometimes help to know the nutritional content of foods.

知道食物所含的营养成分有时的确有帮助。

柯林斯例句

When you sprout seeds their nutritional content increases.

让种子发芽后，其营养含量会提高。

柯林斯例句

The labels on food products give a lot of information about their nutritional content.

食品上的标签提供很多关于营养成分的信息.

《简明英汉词典》