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不少老年人认为,多补充些维生素对身体有好处。那么吃维生素到底对身体有没有好处?该怎样补充才合理呢?下面就这些问题谈谈营养专家的意见。维生素的营养与医疗价值维生素A其生理功能主要是维持眼睛在黑暗情况下的视力和上皮组织的健康,可促进生长发育,增强免疫功能,增强对传染病的抵抗力,并能帮助细胞再生,保护细胞免受自由基的侵害,能使呼吸道、口腔、胃肠道、泌尿系统等器官的粘膜不受损害。维生素A存在有两种形式:一种是存在于动物体内的维生素A醇;另一种则是存在
Many elderly people think that more vitamin supplements are good for the body. So to eat vitamins in the end there is no benefit to the body? How to make it reasonable? Here to talk about nutrition experts advice on these issues. Vitamin nutrition and medical value Vitamin A physiological function is mainly to maintain eyesight and epithelial tissue health in the dark, can promote growth and development, enhance immune function, enhance the resistance to infectious diseases, and can help cell regeneration, Protect cells from free radicals, can make the respiratory tract, mouth, gastrointestinal tract, urinary system and other organs of the mucosa intact. There are two forms of vitamin A present: one is the presence of vitamin A alcohol in animals; the other is there