In order to improve human immunity and enhance disease resistance, various health care products have become standing at home. As can be seen from the name of vitamin, it is an important element to maintain life and plays a very important role in the growth and development of human body and the functions of various organs.
There are many kinds of vitamins, whether tens of dollars of vitamins or hundreds of dollars of vitamins, which are on the hot list of pharmacies. Appropriate vitamin supplements are needed from children to the elderly, but excessive vitamin supplements will bring hidden dangers to health.
Vitamins needed by human body can be obtained from normal diet. If vitamins are taken blindly, they will not be effectively absorbed by the human body, but will be metabolized by the liver. If they cannot be decomposed, they will accumulate in the liver and cause drug-induced liver.
Now more and more people are taking health care drugs. People think that health care products can supplement the nutrients needed by the human body. In fact, all kinds of nutrients needed by human body can be obtained from normal diet. If you take a lot of health care products every day, most nutrients will not be effectively absorbed by the human body, but will be metabolized by the liver, which will bring extra workload to the liver.
Moreover, in order to achieve its declared "quick effect", some health care products will add some pharmaceutical ingredients, which will increase the burden on the liver. Some people blindly supplement vitamins. When taking too many vitamins, they will accumulate in the liver. Long-term accumulation may lead to liver injury and even liver disease.
Therefore, health care products will not only bring us nutrients needed by the human body, but also do great harm to the liver. Experts say, don't take unnecessary drugs, especially those with poor liver, and avoid or reduce taking drugs.
1, vitamin b group
Vitamin B is mainly used to prevent and treat a series of symptoms caused by vitamin B deficiency, including malnutrition, anorexia, beriberi, pellagra and so on. Clinical commonly used vitamin B complex tablets contain a variety of multivitamins, including vitamin B 1, vitamin B2, vitamin B6 and so on.
The pharmacological effects of different B vitamins are also slightly different, such as vitamin B 1, which is mainly involved in the formation of coenzyme in the body and maintains the normal glucose metabolism and the function of the nervous digestive system. Severe deficiency of vitamin B 1 will lead to beriberi, peripheral neuritis and other symptoms.
Vitamin B2, as a component of coenzyme, can participate in the metabolism of sugar, protein and fat in human body and maintain normal visual function. Vitamin B6 is also an important component of coenzyme, which participates in the metabolism of sugar, protein and fat in human body, and is also related to the production of white blood cells and hemoglobin, so vitamin B family is indispensable for maintaining normal physiological functions of human body.
The side effects of B vitamins are usually irritability, fatigue, loss of appetite and other symptoms when taking large doses, so don't blindly take them for a long time or in excess. If you take medicine for a long time, you must use it reasonably under the guidance of a doctor.
2, vitamin D.
The main side effects of vitamin D are vitamin D poisoning caused by overdose, mainly manifested as digestive system symptoms, epigastric discomfort, nausea, vomiting and even loss of appetite, abdominal pain, diarrhea and even constipation, irritability, lethargy and coma, which can affect body temperature, fever and even high fever, and can also cause soft tissue calcification.
It can increase bone decalcification and increase the level of 25- hydroxyvitamin D in blood. Due to osmotic diuresis caused by the increase of blood calcium, obvious polyuria and nocturia increase will cause thirst and even affect renal function, resulting in renal function damage, urinary calcium increase, proteinuria and even hypercalcemia, and hypercalcemia crisis is life-threatening.
Excessive vitamin D supplementation is very rare. Generally, daily supplementation of D2000 units of vitamin D will not lead to vitamin D poisoning. In the process of using vitamin D, you must read the instructions carefully to see the dosage form and variety, whether it is ordinary vitamin D, active vitamin D, vitamin D2 or vitamin D3, and the dose of vitamin D contained.
Pay attention to calcium supplementation when taking it, but it should be noted that if it is active vitamin D, it often takes effect faster. If you take calcium, you must pay attention to monitoring blood calcium, and at the same time look at the 24-hour urinary calcium level to prevent poisoning caused by excessive vitamin D.
3. vitamin a
Although vitamin A has the above points, it has more beneficial effects on the human body, but like other nutrients, the extremes meet. Excessive intake can cause headache, nausea and diarrhea, hepatosplenomegaly and so on. So you need to take it in moderation.
The side effect of vitamin A is that excessive intake of vitamin A will cause toxic reactions, which can be divided into acute, chronic and teratogenic. The symptoms of acute poisoning are nausea, vomiting, headache, dizziness and blurred vision, and infants can cause the front chimney to bulge.
Chronic poisoning is very common, and its symptoms include headache, bone and joint pain, fatigue, irritability, loss of appetite, dry skin, itching, cleft lip, alopecia and hepatomegaly. Excessive intake of vitamin A by pregnant women will affect the development of fetal bones, thus causing fetal malformation.
Lack of vitamin A can lead to dry eye and night blindness. Long-term malabsorption of fat often leads to vitamin A deficiency, especially in children under 5 years old, mainly due to insufficient dietary intake.
4. Tocopherol
Vitamin E is a fat-soluble vitamin, which has many benefits to human body when taken in normal dosage. However, if a large dose is taken at a time, it is difficult to excrete, which will cause poisoning and produce various diseases.
Although the use of vitamin E is relatively safe, patients who take it for a long time or for the first time must also follow a reasonable dosage and course of treatment under the guidance of a doctor. In addition, in the process of clinical medication, vitamin E should also pay attention to the interaction with other drugs.
Eating too much vitamin e has a great influence on the body and may be fatal. Because vitamin E has anticoagulant activity, long-term large intake can increase vascular bleeding. If you are injured at ordinary times, you will bleed a lot, leading to severe ischemic death.
Taking large doses of vitamin E will also hinder the absorption of other vitamins, making other vitamins useless. Taking vitamin E for a long time can also lead to pulmonary embolism and cause lung problems.
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