Vitamin C (ascorbic acid), also known as L- ascorbic acid, is a water-soluble vitamin. Vitamin C in food is absorbed by the upper part of human small intestine. Once absorbed, it will be distributed to all water-soluble structures in the body. There are about 65,438+0,500 mg of vitamin C in the metabolic pool of normal adults, and the highest storage peak is 3000mg. Under normal circumstances, most of vitamin C passes through the body. The other part can be excreted directly through urine.

Guiding opinions:

[1] Effects of Vitamin C on Human Body

Modern research shows that VC is very important to human health;

1. The synthesis of collagen needs vitamin C, so the lack of VC leads to the failure of normal synthesis of collagen, which leads to the obstacle of cell connection. The human body is made up of cells, which are connected by intercellular substances. The key component of intercellular substance is collagen. Collagen accounts for 1/3 of body protein, generates connective tissue, forms skeleton such as bones, blood vessels and ligaments, and determines skin.

2. scurvy. The strength of vascular wall has a great relationship with VC. Microvessels are the smallest of all blood vessels, and the wall may be only one cell thick. Its strength and elasticity are determined by collagen which is responsible for connecting cells. When VC is insufficient in the body, microvessels are easy to rupture and blood flows to adjacent tissues. This happens on the surface of the skin, causing congestion and cyanosis. In the body, it can cause pain and joint swelling. In severe cases, bleeding of stomach, intestine, nose, kidney and periosteum may occur, and even death may occur.

3. Gingival atrophy and bleeding. Healthy gums tightly wrap every tooth. Gum is soft tissue, and it is easy to atrophy and bleed when protein, calcium and VC are lacking.

4. Prevent arteriosclerosis. It can promote the excretion of cholesterol, prevent cholesterol from depositing on the inner wall of arteries, and even dissolve the deposited atherosclerotic plaques.

5. It is a water-soluble antioxidant, which can protect other antioxidants, such as vitamin A, vitamin E, unsaturated fatty acids, and prevent free radicals from harming human body.

6. Treat anemia. Reducing ferric iron which is difficult to be absorbed and utilized into ferrous iron can promote the absorption of iron in meridians and improve the utilization rate of iron in liver, which is helpful to treat iron deficiency anemia.

7. Cancer prevention. Rich collagen helps to prevent cancer cells from spreading; The antioxidant effect of VC can resist the damage of free radicals to cells and prevent cell variation; Prevent nitrite and secondary amine from forming strong carcinogen nitrosamine. Someone once dissected a patient who died of cancer and found that the content of VC in the patient was almost zero.

8. Protect cells, detoxify and protect liver. In human life activities, it is very important to ensure the integrity and normal metabolism of cells. Therefore, glutathione and enzymes play an important role.

Glutathione is a short peptide composed of glutamic acid, cystine and glycine, which has redox function in the body. It exists in two forms, namely oxidation form and reduction form, and reduction form plays an important role in ensuring the integrity of cell membrane. VC is a strong antioxidant, which itself is oxidized to reduce oxidized glutathione to reduced glutathione, thus playing an antioxidant role.

Enzymes are catalysts for biochemical reactions, and some enzymes need free sulfhydryl (-SH) to maintain their activity. VC can reduce disulfide bond (-S-S) to -SH, thus improving the activity of related enzymes and playing an antioxidant role.

As can be seen from the above, as long as VC is sufficient, VC, glutathione and -SH will form a powerful anti-oxidation combination boxing, scavenging free radicals, preventing lipid peroxidation and toxic effects of certain chemicals, and protecting the detoxification ability of the liver and the normal metabolism of cells.

9. Improve human immunity.

Leukocytes are rich in VC, and when the body is infected, VC decreases sharply. VC can enhance the chemotaxis and deformability of neutrophils and improve their bactericidal ability.

Promote the generation of lymphocytes and improve the body's ability to identify and kill foreign cells and malignant cells.

Participate in the synthesis of immunoglobulin.

Improve the activity of complement esterase in CI and increase the production of complement CI.

Promote the production of interferon, interfere with the transcription of virus mRNA, and inhibit the proliferation of virus.

10. Improve the body's emergency response ability. Abnormal stimulation, such as severe pain, cold, lack of oxygen and strong mental stimulation, will trigger a state of tension against abnormal stimulation. This state is accompanied by a series of organisms, including sympathetic nerve excitation and increased secretion of adrenal medulla and cortical hormones. Adrenaline and norepinephrine secreted by adrenal medulla are converted from tyrosine, which requires VC to participate in the secondary process.

Vitamin C is a water-soluble vitamin (its aqueous solution is acidic), and its chemical formula is C6H8O6. Without this vitamin C, people are prone to septicemia, so vitamin C is also called ascorbic acid. Vitamin C is easily oxidized by oxygen in the air. Vitamin C exists in fresh fruits, vegetables and dairy products, such as fresh orange juice, with a content of about 500 mg/L. 。

Life care:

Suitable crowd

1, people who get tired easily.

2. People who work in polluted environment. People with high vitamin C content will hardly absorb harmful elements such as lead, cadmium and chromium.

3. People who like smoking. People who smoke eat more foods containing vitamin C. Vitamin C helps to improve the resistance of cells, maintain the elasticity of blood vessels and eliminate nicotine in the body.

4. People who engage in strenuous exercise and high-intensity labor. These people will lose a lot of vitamin C due to excessive sweating and should be supplemented in time.

5. Patients with scurvy. This disease is due to the lack of vitamin C in diet, which leads to poor formation of hoof tissue and increased brittleness of capillary wall. You should eat more foods rich in vitamin C.

6. People with spots on their faces. Vitamin c has antioxidant effect. Vitamin C supplementation can inhibit the formation of pigmented spots and promote their regression.

7. People who take drugs for a long time. Take aspirin, sleeping pills, anticancer drugs, tetracycline, calcium products, birth control pills, antihypertensive drugs, etc. It will reduce vitamin C in human body and cause other adverse reactions. Vitamin c should be supplemented in time.

8. Cataract patients. Vitamin C is a nutrient element of intraocular lens, and insufficient intake of vitamin C is one of the factors leading to cataract. Patients should take more vitamin C.

How to write vitamin Pop? Remember to use ~POP font. Don't worry any more. Please see the following experience.

Where to find hand-painted posters with POP fonts (Chinese version) _ Baidu Experience

How to write hello for vitamin C chewable tablets pop,

Vitamin c tablets are oral drugs, which can be swallowed with boiling water and will not dissolve. In addition, taking vitamin C should be based on the cause of the disease and should not be taken blindly.

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