一提起营养,就有人认为只有山珍海味才有营养,粗茶淡饭投有营养,这是一种误解。营养是一种生物学过程。从微生物到人类,一切生物的活动(包括生长发育)都需要不断地从外界摄取一定量的物质,并把它变为自身所需要的形式。这就是机体摄取、消化、吸收和利用食物或养料的整个过程。可见,营养是一切生物生存的前提,也是人类维持健康的基础。 Mention one nutrition, some people think that only delicacies have nutrition, ecumenical nutrition, it is a misunderstanding. Nutrition is a biological process. From microbes to humans, all biological activity (including growth and development) requires the continual ingestion of a quantity of matter from the outside world and its transformation into the form it needs. This is the whole process of the body taking in, digesting, absorbing and utilizing food or nourishment. Visible, nutrition is the premise of all living organisms, but also the basis for human health.