Function:

1. Promote collagen synthesis. When vitamin C is lacking, collagen synthesis is impaired, leading to scurvy.

2. Promote the synthesis of neurotransmitters (5-hydroxytryptamine and norepinephrine).

3. Promote steroid hydroxylation. Patients with high cholesterol should supplement with adequate amounts of vitamin C.

5. Promote hydroxylation and detoxification of organic substances or poisons. Vitamin C can increase the activity of mixed-function oxidase and enhance the detoxification (chemicalization) process of drugs or poisons.

6. Promote the formation of antibodies. High concentrations of vitamin C help reduce cystine in food proteins to cysteine, thereby synthesizing antibodies.

7. Promote the absorption of iron. Vitamin C can reduce the difficult-to-absorb ferric iron into the easily-absorbable divalent iron, thus promoting the absorption of iron. In addition, it can also keep the sulfhydryl groups of ferrous complexase and other enzymes in an active state so that they can work effectively. Therefore, vitamin C is an important auxiliary drug in the treatment of anemia.

8. Promote the formation of tetrahydrofolate. Vitamin C can promote the reduction of folic acid to tetrahydrofolate and then play a role, so it also has a certain effect on megaloblastic anemia.

9. Maintain the activity of thiolase.

10. Detoxification, supplementing the body with a large amount of vitamin C can alleviate the toxic effects of lead, mercury, cadmium, arsenic and other heavy metals on the body.

12. Prevent cancer. Many studies have proven that vitamin C can block the synthesis of carcinogen N-nitroso compounds and prevent cancer.

13. Scavenge free radicals. Vitamin C can remove supernegative oxygen ions, hydroxyl free radicals, organic free radicals and organic excess ions in the body through the process of gradually donating electrons and converting into semi-deoxyascorbic acid and dehydroascorbic acid. Oxygen radicals and other free radicals can reduce tocopherol free radicals to tocopherol, and the ascorbic acid free radicals generated by the reaction can be reduced to ascorbic acid under certain conditions by the NADH2 system enzyme.

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Extended information:

People who overdose on vitamin C, The content of vitamin C in his body decreased instead. This is because taking large doses changes the regulatory mechanism of vitamin C in the body and accelerates its decomposition and excretion. Therefore, once the drug is stopped, it may lead to drug withdrawal reaction and early symptoms of scurvy (including swelling and bleeding of gums, loose teeth).

Depending on the absorption rate, the most effective way to ingest vitamin C is to take it three times a day, immediately after meals, and this can also prevent the side effects caused by high doses of vitamin C. Gastrointestinal tract absorption, mainly in the jejunum. Low protein binding rate. The content is higher in glandular tissue, white blood cells, liver, and eye lens. When the human body consumes the recommended daily requirement of vitamin C, approximately 1,500 mg is stored in the body. For example, when 200 mg of vitamin C is consumed daily, the body stores approximately 2,500 mg.

Reference materials: /baike.baidu.com/item/E7BBB4E7949FE7B4A0c/380582?fr=aladdin#3"target="_blank"title="Baidu Encyclopedia-Vitamin c"gt; Baidu Encyclopedia-Vitamin c