什么是维生素维生素(vitamin)又名维他命,是维持人体生命活动必需的一类有机物质,也是保持人体健康的重要活性物质。维生素在体内的含量很少,但在人体生长、代谢、发育过程中却发挥着重要的作用。维生素(vitamin)是人和动物为维持正常的生理功能而必需从食物中获得的一类微量有机物质。在生理作用上维生素既不是构 What is Vitamins Vitamins, also known as vitamins, are an essential class of organic substances necessary for the maintenance of human life activities. They are also important active substances for maintaining human health. Vitamin content in the body is small, but in the human body growth, metabolism, developmental process has played an important role. Vitamin is a kind of trace organic substance that must be obtained from food in order to maintain normal physiological functions. In the physiological role of vitamin is neither a structure