人们利用营养素,维持生活,绵延种族,普通所注意之经理营养作用之营养素者,除水分外,有脂肪、蛋白、炭水化合物、维生素等,由炭,氢,氧,氮各元素组成的有机物,但矿质物在身体营养上亦为不可或缺之必需品,有的特殊价值,如镁,铁、钙,钾,钠,磷、硫、氯等元素多存贮为氯化盐,硫酸盐,磷酸盐等物,在 In addition to water, there are fats, proteins, carbohydrates, vitamins, etc., composed of carbon, hydrogen, oxygen, nitrogen, the organic elements of the various elements of the use of nutrients, maintenance of life, extended race, general manager of the nutritional effects of managers However, mineral substances are also indispensable necessities in the body nutrition. Some special values ​​such as magnesium, iron, calcium, potassium, sodium, phosphorus, sulfur, chlorine and other elements are stored as chloride, sulfate, Phosphate and other objects, in