英语作文关于维生素C
Why does the human body need vitamin C?蒸鱼豉油的用法
顾望>新编西游记Vitamin C can promote the generation of collagen in interstitial cells. Collagen plays an adhesive role between cells and plays an important role in maintaining the integrity of tissues and organs. When vitamin C is deficient, the supporting structure of interstitial cells collaps, the fragility of capillaries increas, and there are extensive bleeding spots all over the body, bones and teeth can't develop normally, teeth become loo, gums bleed, wounds can't heal, and anemia can also occur. In vere deficiency, internal organs and subperiosteal bleeding may occur, even life-threatening.
Vitamin C can enhance the body's resistance and prevent infectious dias. Vitamin C can promote the formation of antibodies in the body and improve the phagocytosis of blood cells. At the same time, it is often the antidote for lead poisoning, arnic poisoning and benzene poisoning.
Vitamin C can reduce high iron to low iron in intestine, which is beneficial to iron absorption, so vitamin C should be supplied at the same time when taking iron.全国高校排名
Vitamin C also has an anti-cancer effect. At the cond international conference on vitamin C, it was reported that vitamin C can prevent the production of substances that cau gastric cancer. If you can take 2 grams of vitamin C every day, the carcinogens in your body will be drastically reduced. Some people have obrved that the recent decrea in cancer incidence in the United States is related to improving food prervation methods and reducing the loss of vitamin C.
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The German Nutrition Rearch Institute suggested that everyone should take 50~100mg of vitamin C every day, so that the concentration of vitamin C in the blood can just reach saturation. If the intake exceeds this range, the body can't absorb more, which is equal to waste. However, 30mg of vitamin C is the minimum value for the human body to take vitamin C every day. If it is less than 30mg, the body will lack vitamin C, which will make some functions unable to function normally, and even lead to scurvy in the long run.
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During a cold, you need to take about 100~200mg a day to enhance your body's immunity and fight against invading virus. Hot weather and ultraviolet rays in summer will increa the active acid in your body and consume vitamin C, so the intake should be incread appropriately.
