Vitamin C can maintain health and prevent diseases. Vitamin C deficiency not only causes scurvy, but also relates to the production of virus inhibitors, so vitamin C plays a great role in preventing and treating colds. At the same time, it also has the retrogressive effect of lowering cholesterol value and maintaining female ovulation. It has a great effect on resisting mental stress, so it is easy for white-collar women to supplement vitamin C appropriately. In addition, vitamin C has certain cosmetic, antiallergic and antihistamine effects. The food with the most vitamin C content-lemon. A lemon has only 250 mg of vitamin C. To supplement 500 mg of vitamin C, you must eat 20 such sour fruits every day. Appropriate vitamin C supplementation will play a great role in maintaining health and preventing diseases.

Vitamin E- a panacea for rejuvenation. Vitamin E is a vitamin for rejuvenation and recovery of health. Because vitamin E has a strong anti-acidification effect, it can activate cell metabolism, restore the youthful function of cells, make white hair gradually black, and reduce or even disappear skin dark spots. Vitamin E can accelerate energy recovery, enhance the activity of myocardial cells, and have antioxidant effect. However, it takes two years for heart disease to take effect, so it needs to be taken for a long time, and the effect of natural active vitamin E is better.

Second, vitamin E should be taken with caution with five drugs at the same time.

Vitamin E has the function of delaying aging and improving immunity, and it is one of the few antioxidants that can really be applied to human anti-aging. At the same time, vitamin E can also assist in the treatment of some elderly diseases, such as hyperlipidemia, arteriosclerosis, menopausal disorders and so on. It also has certain curative effect on habitual abortion, male and female infertility, anemia, muscular dystrophy and other diseases.

But in fact, there are still some misunderstandings when people take vitamin E. Cui Jia, director of pharmacy department of Armed Police General Hospital, warned that vitamin E should not be taken in large doses for a long time. If there are special needs, it is best not to exceed 200mg a day. Especially when vitamin E is used together with the following five drugs, it must be carried out under the guidance of a doctor. Don't take it yourself.

The first kind, aspirin. Both vitamin E and aspirin can reduce blood viscosity, so when taking vitamin E and aspirin at the same time, the doctor should adjust the patient's dose according to the specific situation.

Second, vitamin K and vitamin E have antagonistic effects on vitamin K, which can inhibit platelet aggregation and reduce blood coagulation. Therefore, please don't take vitamin E before operation or while taking anticoagulant drugs.

The third kind, digitalis. Vitamin E can enhance the cardiotonic effect of digitalis. Patients who use such drugs should use vitamin E with caution to avoid digitalis poisoning.

Fourth, neomycin. Drugs that affect fat absorption, such as neomycin, will affect the absorption of vitamin E, so taking them at the same time may reduce the efficacy of both.

Fifth, estrogen. Long-term high-dose (more than 400mg per day) taking vitamin E, especially combined with estrogen, can induce thrombophlebitis, so we should be vigilant.

In addition, the measurement unit of vitamin E is mg in China and IU abroad, which is not equal. The conversion method is: 1mg vitamin E is equivalent to 1.49IU.

Director Cui Jia introduced that at present, many prescriptions of health care products on the market contain vitamin E, and their measurement units are not uniform. When taking vitamin products made in foreign countries, we should pay attention to the measurement units indicated in the instructions, and pay attention to the content of vitamin E in them to avoid repeated use.

Third, taking multiple vitamins at the same time is effective _ nutritious diet

Studies have reported that taking multiple vitamins together is more effective.

As we all know, vitamin A is effective in treating night blindness, but vitamins are easily oxidized. Once oxidized, the effect of treating night blindness will disappear. If the degree of oxidation is deeper, all the beneficial effects of vitamins will disappear. Scientists have found that if vitamin A and vitamin E are taken at the same time, vitamin A is difficult to be oxidized. This is because vitamin E is easier to combine with oxygen, and vitamin E will be oxidized before vitamin A, so vitamin A can be protected from oxidation. After vitamin E is oxidized, it is vitamin C that reduces the oxidized vitamin E. The combined use of these three vitamins can improve their respective efficacy. Vitamin E can lower cholesterol level, prevent hypertension and protect intima of blood vessels. If vitamin E and vitamin C are taken together, the effect will be greatly improved.

In addition, when vitamin E is taken together with vitamin B, the antioxidant effect of vitamin E will be enhanced. Therefore, it is best to take vitamin E together with vitamin C and vitamin B. This is a method worth introducing and beneficial to human health.

Excessive use of vitamin C is also harmful.

During the period of SARS, the Ministry of Health announced the drugs for "rapidly improving immunity", one of which is vitamin C, which is cheap, easy to buy (available in OTC pharmacies) and convenient to take ... So many people abuse vitamin C as a tonic for a long time in order to improve their immunity, and the maximum dose reaches dozens of tablets a day, resulting in side effects such as hematuria, abdominal pain and diarrhea. When the author conducts "drug consultation" in the outpatient department, people often come to consult: Is there any side effect after taking too much vitamin C?

Vitamin C is also called ascorbic acid because it can prevent scurvy. It is widely found in fresh fruits, green leafy vegetables and meat, and is extremely rich in traditional Chinese medicines such as hawthorn, dark plum, xanthium sibiricum and vinegar willow. Therefore, normal people are not lacking, and ordinary people do not need to take vitamin C regularly.

Clinically, vitamin C is mainly used for preventing and treating scurvy, Keshan disease, methemoglobinemia, chronic metal poisoning, promoting wound healing, allergic dermatosis, various anemia, promoting the growth and development of colds, hyperlipidemia, anti-aging, treating eye burns and cataracts, and also for adjuvant treatment of acute and chronic infectious diseases and hepatitis.

Previously, it was thought that vitamin C had little toxicity, and even if it was taken orally in excess, it would only cause slight nausea, vomiting and diarrhea. However, in recent years, according to clinical observation and animal experiments, long-term overdose of vitamin C will lead to a series of adverse reactions. The author refers to various materials at home and abroad, which are summarized as follows:

(1) Studies by foreign authoritative organizations show that people who want to increase their resistance to colds and take too much vitamin C for a long time will reduce their vitamin C content. This is because taking a large dose changes the regulation mechanism of vitamin C in the body and accelerates the decomposition and excretion. Therefore, once drug withdrawal can lead to drug withdrawal reaction, early scurvy symptoms (including

Gum swelling and bleeding, loose teeth).

(2) Growing children taking large doses of vitamin C will make them prone to bone diseases in the future, because large doses of vitamin C will destroy the formation process of osteoblasts.

(3) If vitamin C4 and above are taken orally every day, urinary calcium oxalate stones and kidney calculi may appear one week later, and hematuria and renal colic may appear in severe cases. Too much vitamin C will make the urine acidic, which will lead to oxalate stones.

(4) High-dose vitamin C can resist the anticoagulant effect of heparin and dicoumarin, leading to thrombosis, which makes patients with cardiovascular and cerebrovascular diseases more prone to cerebral infarction (stroke).

(5) Intake of high-dose vitamin C can increase urine excretion, because its reducibility can produce false positive reaction of urine sugar, which hinders the diagnosis and treatment of diabetic patients and accurately grasps the dosage of hypoglycemic drugs.

(6) High dose of vitamin C can reduce female fertility and affect embryo development. Because a large dose of vitamin C is easy to form an "acidic constitution" in the body, which is not conducive to the development of germ cells.

(7) When the daily dose of vitamin C exceeds 3 grams, it can lead to increased intestinal peristalsis in some people, causing abdominal cramps and diarrhea.

(8) Taking vitamin C together with foods containing vitamin B 12 can destroy a considerable amount of vitamin B12; However, vitamin B 12 is destroyed in large quantities, which makes people prone to anemia.

To sum up, although vitamin C is an essential substance to maintain human metabolism and has important clinical value for the prevention and treatment of various diseases, excessive intake is not beneficial or even harmful to human body.

Taking vitamin E varies from person to person.

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Southern Network News Speaking of vitamin E, I believe everyone must be familiar with it. In life, middle-aged and elderly people often take vitamin E to delay aging, while women like to choose cosmetics containing vitamin E to beautify and rejuvenate their skin. However, we know little about the role of vitamin E in the prevention and treatment of diseases and how to choose and take vitamin E correctly. Recently, at the seminar on "Vitamin E and Human Health", relevant experts comprehensively introduced the latest discovery and research of vitamin E.

Found vitamin e

According to Yang Xiaoguang, a researcher at Institute of Nutrition and Food Hygiene, Chinese Academy of Preventive Medicine 1922, foreign experts found that a fat-soluble dietary factor is very important for the normal reproduction of rats. This factor is named vitamin E in 1924. In subsequent animal experiments, scientists found that if mice lack vitamin E, their hearts, livers and muscles will degenerate and they will be infertile. If mice lack vitamin E, male mice will never have children, and female mice will never be pregnant with full-term fetuses. At the same time, there are symptoms such as liver degeneration and myocardial abnormality. Without vitamin e, monkeys will be anaemic, infertile and have abnormal myocardium. In the 1980s, medical experts found that if human beings lacked vitamin E, it would cause hereditary diseases and metabolic diseases. With the deepening of research, medical experts have realized that vitamin E plays a wide role in the prevention and treatment of cardiovascular and cerebrovascular diseases, tumors, diabetes and other complications, central nervous system diseases, sports system diseases, skin diseases and so on.

Natural vitamin e gradually replaces synthetic vitamin e.

According to professionals engaged in vitamin research, many people buy vitamin E for health care and disease prevention, but they are generally synthetic vitamin E products. With the development of modern medicine and nutrition, scientists have found that natural vitamin E is actually more in line with human needs than synthetic products. this