2007年第7期的《维生素,知多少》一文刊登之后,受到众多读者的喜爱。作为它的姊妹篇,本文将详尽介绍同样属于人体必需营养素的矿物质。矿物质是人体所需的无机物的总称。矿物质和维生素一样,是人体必不可少的营养素,担任不同的生物功能,维持机体的正常运转。人体中的矿物质无法自身产生,只能从外界摄取,每天的摄取量也是基本确定的,只是随年龄、性别、身体状况、环境、工作等因素有所不同。根据矿物质在体内含量的多少,大致可分为常量元素和微量元素两大类。本文将重点介绍其中的6种常量元素——钙、镁、磷、钾、钠、氯以及9种微量元素——铁、锌、硒、铜、钼、碘、铬、钴、锰。那么,它们究竟有何功用,又为何称之“不可缺少”? 2007 seventh issue of “vitamin, know how many” after the publication of a text, by many readers. As a companion piece, this article will detail the minerals that also belong to the essential nutrients of the body. Minerals are the general term for the inorganic substances that the body needs. Minerals, like vitamins, are essential nutrients in the body and serve different biological functions to maintain the normal functioning of the body. Minerals can not produce their own minerals, can only be taken from the outside world, daily intake is basically determined, but with age, gender, physical condition, environment, work and other factors are different. According to the amount of minerals in the body, can be roughly divided into two major categories of macroelements and trace elements. This article will highlight six of these major elements - calcium, magnesium, phosphorus, potassium, sodium, chlorine and nine trace elements - iron, zinc, selenium, copper, molybdenum, iodine, chromium, cobalt and manganese. So, what are their functions, why they are called “indispensable”?