Taking vitamin C to prevent colds is not significant
Colds are a very common disease, and whenever we have a cold, it seems that there are always some people around us, such as boyfriends, girlfriends and some elders, who recommend us to drink more hot water and eat more vitamin C, thinking that this can prevent colds or accelerate the recovery of colds.
Zhao Runshuo, chief physician of Beijing Xiaotangshan Hospital: Vitamin C helps synthesize collagen, prevent gum recession and bleeding, maintain immunity, promote iron absorption, help treat anemia, anti-cancer effects, etc. However, these effects are mostly based on the premise of a lack of vitamin C in the human body or the conclusion of in vitro studies, which is of limited significance to healthy people, as long as it is not deficient, there is no need to take vitamin C supplements.
Vitamin C is often taken and the effect of preventing colds in the general population is not significant. Taking it regularly may shorten the duration of a cold, but starting vitamin C after you have already experienced uncomfortable symptoms does not have this effect. Experimental studies by the medical community to verify the therapeutic effect of vitamin C on colds have not proved its efficacy, and there is currently no strong evidence to support the use of vitamin C to treat colds. Most common colds are self-limiting diseases that heal on their own without treatment.
In fact, whether it is medicinal vitamin C, or health care product vitamin C, or vitamin C candy, or a variety of blown to the sky, all kinds of black technology vitamin C products, if we eat ourselves, just buy the content of vitamin C in the logo, there is not much difference.
Vitamin C supplementation is preferred in fruits and vegetables, and the recommended dose is 100 mg per day. The vitamin C content per 100g (vegetables are dry weight) in common vegetables and fruits, two kiwi fruits, a dozen strawberries, and a plate of broccoli are basically enough. If you can’t eat vegetables and fruits regularly, then vitamin C intake may be insufficient, and you can take some vitamin C supplements at this time. And eating 200mg of vitamin C per day for health purposes is enough.
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