A Complete Collection of 100000 Whys
Fav十万个为什么
为什么身体需要维生素？
1、维生素是维持身体正常运转必需的营养素，它们帮助调节各种生理功能，如免疫系统、能量代谢和细胞生长。
2、维生素作为辅酶参与体内多种化学反应，如帮助食物转化为能量，促进蛋白质、脂肪和碳水化合物的代谢。
3、维生素有助于骨骼健康，例如维生素D促进钙的吸收，维生素K参与血液凝固过程，保护血管健康。
4、维生素对视力至关重要，例如维生素A形成视网膜感光物质，预防夜盲症，维生素C则有助于眼睛健康。
5、维生素支持免疫系统功能，如维生素C增强免疫细胞活性，维生素E和维生素D帮助抵御感染和炎症。
总之，维生素是身体无法自行合成或合成不足必须从外界获取的营养素，它们在维持生命活动、预防疾病和促进健康方面发挥着不可替代的作用。
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