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Q都说到了一定年龄就该补充维生素,真的是这样吗?A一般而言,大多数膳食均衡(即摄入各种水果、蔬菜、谷类和蛋白质)且有日光暴露的成人无需另外补充维生素。但对某些特殊人群,如大多数老年人,尤其是跌倒风险增加者,推荐补充维生素D,1 000 IU/d是合适的剂量;对于即将妊娠以及备孕的女性,推荐补充叶酸,400~800μg/d是合适的剂量。有关补充维生素可预防感冒,甚至癌症的说法,现有循证医学证据并不支持通过补充维生素预防感冒,甚至癌症。
Is it true that Q says vitamin supplements are available for a certain age? A In general, most adults with balanced diet (that is, eating a variety of fruits, vegetables, cereals and protein) and exposed to the sun do not need to be supplemented with vitamins . However, for some special populations, such as most elderly people, especially those who are at increased risk of falling, vitamin D supplementation is recommended at a dosage of 1000 IU / d; folic acid, 400-800 μg, is recommended for expectant and pregnant women / d is the appropriate dose. With regard to vitamin supplements to prevent colds and even cancer, there is evidence-based medical evidence that does not support the prevention of colds and even cancer through vitamin supplements.