The minerals are present in small amounts in food and as a function of body weight as well.

矿物质,在食物中所占比例非常小,在体重中所占比例也非常小

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And so the food is a broader constituent of what we consume; the nutrient will be the pieces of the food that affect bodily function.

所以食物的概念要比吃的东西更加广泛,食物中的营养素影响着我们的人体机能

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

A nutrient is considered a substance within the food, that's when it digests it, absorbs, promotes some bodily function, so that it has some metabolic health value when people consume it.

营养素是包含在食物中的物质,由人体消化,吸收,推动身体机能,食品必须具有值得人类去代谢的健康价值

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选