维生素,顾名思义就是维护生命与健康的要素。一般只要饮食和胃肠的消化吸收功能正常,人们都可以从所摄取的食物中满足自身对维生素的需要。而老年人却有些例外,往往在饮食之外需要服用一些维生素制剂来补充体内维生素的不足,究其原因为:一是老年人摄食量减少,因而从食物中摄 Vitamins, as the name suggests, are the elements that maintain life and health. As long as the normal digestion and absorption of diet and gastrointestinal function, people can take their food from the intake of their own needs of vitamins. The elderly, however, have some exceptions, often outside the diet need to take some vitamin supplements to supplement the lack of vitamins in the body, for the following reasons: First, reduce the amount of food intake in the elderly, and therefore from the food