人们知道,维生素和蛋白质、脂肪、糖、水、无机盐一样,是人体极需要的物质。维生素A、D为人体生长发育所必需;B族的一些维生素在人体细胞内与蛋白质结合,可产生正常代谢所需要的酶。当人体缺乏维生素时,生长发育受到影响,新陈代谢也不能进行,会出现一系列的维生素缺乏症。这时,补充相 People know that vitamins and proteins, fat, sugar, water, inorganic salts, is the body’s most needed material. Vitamin A, D is necessary for the growth and development of the human body; some B vitamins in the human body cells and protein binding, can produce the normal metabolism of enzymes. When the body lacks vitamins, growth and development are affected, the metabolism can not be carried out, there will be a series of vitamin deficiency. At this time, add phase