"Health and hospitals are basic areas of well being, lets say,that when a major disaster or a smaller disaster occurs, if you do not have health facilities that function and can respond to the needs you create yet another level of disaster,".

VOA: standard.2009.10.14

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