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人类必需从食物中得到的六大营养要素是糖类、脂肪、蛋白、盐类(包括微量元素),维生素和水,维生素是其中之一。到现在为止,被世界公认的维生素有14种,它们是维生素 A、B_1、B_2、B_6、B_(12)、泛酸、叶酸、菸酸、胆硷、生物素、维生素 C、维生素 D、维生素 E 和维生素 K。其中 A、D、E、K 是脂溶性维生素,其它10种为水溶性维生素。胆硷因为制品不稳定,无产品供应,其它均有制剂供人们防治疾病。这些维生素都不能由人体自身合成而必需由外界摄取。如果某一种维生素缺乏,便可能出现疾病,如夜盲症、佝偻病、坏血病、脚气
The six essential nutrients that humans must get from food are sugar, fat, protein, salts (including trace elements), vitamins and water, and vitamins. Up to now, there are 14 kinds of vitamins recognized by the world. They are vitamin A, B_1, B_2, B_6, B_ (12), pantothenic acid, folic acid, nicotinic acid, choline, biotin, vitamin C, vitamin D, vitamin E And vitamin K Among them, A, D, E, K are fat-soluble vitamins, and the other 10 are water-soluble vitamins. Choline because the product is unstable, no product supply, the other formulations are available for people to prevent disease. These vitamins can not be synthesized by the body itself and must be taken by the outside world. If a particular vitamin is deficient, diseases such as night blindness, rickets, scurvy, athlete’s foot