Lean meat, pork liver, fish, egg yolk, etc. Oysters have the highest zinc content. According to laboratory tests, the zinc content in animal foods is generally high, and the zinc content in each100g of animal foods is about 3-5mg, and amino acids produced after animal protein decomposition can also promote the absorption of zinc. Zinc content in plant food is less. Every100g of plant food contains about 65438 0 mg of zinc. There are beans, peanuts, millet, radish and Chinese cabbage with high zinc content in various plant foods.
Zinc is a trace element, and its content and daily intake in human body are very small, but it is harmful to sexual development, sexual function and the generation of germ cells.
But it can play a decisive role, so it is called "the spark of life" and "the harmonious element of marriage".
The normal zinc content of human body is 2-3g. A very small amount of zinc is distributed in most tissues, especially in liver, muscle and bone. Zinc is the body number.
The main components of ten enzymes. Zinc is also related to brain development and intelligence. An American university found that the zinc content of smart and well-studied teenagers is better than that of fools.
A dull man is tall. Zinc can also promote the proliferation and activity of lymphocytes, maintain normal epithelial and mucosal tissues, prevent the invasion of bacteria and viruses, and promote injury.
Oral healing, reducing skin lesions such as acne, and correcting taste failure are all wonderful.
lack
When zinc is deficient, all systems of the whole body will be adversely affected. In particular, it has a more direct impact on puberty gonadal maturation. Young people in Egypt's Nile Delta suffered greatly.
When zinc is deficient, the main manifestations are growth stagnation and hypogonadism. Studies in Iran have confirmed that girls and school-age children have growth retardation and sexual maturity retardation.
After adding zinc to food, the patient's development will soon return to normal.
Animal experiments have confirmed that the brain development of zinc-deficient animals is slow.
Zinc deficiency in some tissues of eyeball will affect photochemical process and make vision abnormal.
Zinc is also a component of insulin. When the zinc content in the pancreas drops to half of the normal level, there is a possibility of diabetes.
zinc deficiency
The dietary structure of Chinese people is mainly cereals, and the bioavailability of zinc in cereals is very low, only 20-40%. If children eat more exquisite food,
Among them, excessive loss of zinc content is more likely to lead to zinc deficiency.
(1) Etiology:
1. zinc intake is insufficient, and the zinc content in breast milk is higher than that in mature milk. After the baby is born, the mother's colostrum is not full or breast milk is insufficient, and zinc-rich complementary food is not added in time, which will cause zinc.
Insufficient intake.
2. Poor absorption of zinc, such as chronic digestive diseases, can affect the absorption and utilization of zinc.
3. The demand for zinc increases, and children with fast growth and development are prone to zinc deficiency.
4. Excessive zinc loss, such as nephrotic syndrome; Hemolytic anemia is treated with diuretics, steroids and membrane dialysis. Excessive intake of iron and calcium will increase the loss of zinc.
(2) Clinical manifestations:
The onset is slow, and the main symptoms are taste loss, loss of appetite, recurrent oral ulcer and pica. Backward growth and development, sexual retardation, listlessness, skin rash.
At present, blisters or ulcers often appear at the junction of skin and mucosa and the end of limbs in wet diagnosis, which often leads to persistent dermatitis and alopecia, easily complicated with infectious diseases and slow wound healing.
Wait a minute. Zinc deficiency in pregnant women can lead to fetal dysplasia. In addition, because it affects the operation of vitamin A, it can also be accompanied by night blindness.
(3) Diagnosis:
According to dietary survey, clinical manifestations, determination of serum zinc level and comprehensive judgment after zinc supplementation.
(4) Prevention:
Sticking to a balanced diet is the main measure to prevent zinc deficiency. Generally speaking, breast milk, especially colostrum, has the highest zinc content, so it is very important to advocate breast feeding to prevent zinc deficiency.
Meaning of. Animal food is not only rich in zinc, but also has high utilization rate, and the zinc content of nuts is not low.
(5) treatment:
1. Reasons for removing zinc deficiency.
2. Adjust diet: actively supplement various animal foods rich in zinc such as liver, lean meat, egg yolk and fish.
3. zinc supplementation.
4. Take zinc to increase protein intake, and treat iron deficiency anemia at the same time, which can improve zinc deficiency more quickly.
food source
Normal people can provide about 10-20mg of zinc to the human body every day, but only 2-3mg can be used. The main substance affecting zinc absorption is plant acid, which exists in
Zinc can form insoluble salts in the intestine. A large amount of dietary fibres also affects the utilization of zinc.
To ensure that there is enough zinc in the body, we must first adjust our diet. The content of available zinc in animal protein foods such as fish, meat, liver, kidney and shellfish.
They are all rich, and zinc deficiency can be reasonably matched in the diet.
Special purpose
(The role of zinc in sexual activity)
Human testis, prostate and semen all contain high concentrations of zinc. When the content of zinc in human body is deficient, sexual function will be reduced and testosterone will be synthesized.
If the enzyme is disordered, men will lead to impotence and acne on their faces. Zinc plays a special role in stimulating sperm motility, and zinc deficiency will lead to sperm motility decline.
Long-term zinc deficiency, which can not be replenished in time, may lead to a significant decrease in sperm count, testicular atrophy, and eventually lead to infertility.
According to the data of the World Health Organization, the daily zinc intake of adults is 15 mg, while that of men in China is only about 9 mg. Lead to zinc intake from food.
Insufficient, for the following reasons:
First, a large number of chemical fertilizers have been applied to the land, and the grain planted is generally deficient in zinc;
Second, after deep processing, the content of zinc in food can be reduced;
Third, drinking and eating sugar will also consume some zinc. People are prone to zinc deficiency, especially married young men, because they are at the peak of sexual life, that is, when drinking.
When the intake of zinc is relatively insufficient, a considerable amount of zinc is lost with semen.
Zinc deficiency in human body can generally be supplemented by adjusting diet. Shellfish food such as oysters, clams, oysters, clams, etc. Contain more zinc, and as far as zinc content is concerned,
The first oyster, based on the zinc content of 100g food, is 100 mg. Other foods such as animal liver, coarse grains, fish, meat and eggs also contain a considerable amount of zinc, while water
The content of zinc in fruit is the least.
In a word, zinc plays a leading role in sexual activity and plays an important role in maintaining reproductive function. Therefore, it is recommended that young male friends drink as little as possible and in moderation every day.
Increase the intake of foods with high zinc content, so as not to affect your reproductive function. Which male infertile patients need zinc supplementation?
As we mentioned in related content, testicles, prostate and semen are rich in zinc. Because the seminal plasma in semen is mainly composed of prostate.
Secretion, so checking the content of zinc in seminal plasma can be used as an index to monitor prostate function.
Researchers have found that zinc plays an important role in maintaining this physiological state during the long pre-fertilization process, such as the maturation, transportation, movement and capacitation of sperm in female reproductive tract.
Important role. Sperm absorbs zinc in seminal plasma during ejaculation, which combines with sulfhydryl group of nuclear chromatin to avoid premature depolymerization of chromatin, which is beneficial to receiving sperm.
All right. Zinc can also delay the lipid oxidation of sperm membrane, maintain the stability and permeability of cell membrane structure, and make sperm maintain good fluidity.
In addition, there are many enzymes involved in the process of testosterone synthesis by leydig cells. When zinc is deficient in the body, the properties and functions of these enzymes will change, thus making the testis
The amount of testosterone synthesized and secreted by interstitial cells decreases and so on.
Male infertility caused by zinc deficiency can be seen in oligozoospermia with reduced sperm count and azoospermia with poor sperm activity rate. So when you encounter the above situation, you can
Check the zinc content in seminal plasma. If it is the cause of zinc deficiency, zinc supplementation can be used for treatment. Generally, 0.5% zinc sulfate aqueous solution can be used after meals.
Take 20ml each time, three times a day. Foods high in zinc, such as oysters and animal livers, can also be used to treat such patients and make them fertile. Besides, this is
Without the conditions for detecting zinc content, food zinc supplementation will not cause adverse effects on the body.
Zinc gluconate
(Properties and stability) Zinc gluconate is white crystal or granular powder; Soluble in water, insoluble in ethanol, chloroform and ether. The preparation of this product needs shading and compactness.
Sealed preservation.
(In vivo process) Zinc gluconate is mainly absorbed by small intestine after oral administration, and the serum zinc concentration reaches the peak after 1 hour, and then begins to decrease after about 2 hours. Can be widely distributed in the liver,
Intestine, spleen, pancreas, heart, kidney, lung, muscle and central nervous system, bones, etc. It is mainly excreted by feces, and a small amount is excreted by urine and milk. At a similar zinc content
In this case, the bioavailability of this product is 1.6 times that of zinc sulfate.
Zinc exists in many enzyme systems, such as carbonic anhydrase, respiratory enzyme, lactate dehydrogenase, superoxide dismutase, alkaline phosphatase, DNA and RNA poly.
Among enzymes, it is necessary for the synthesis of nucleic acids, protein, carbohydrates and the utilization of vitamin A. Zinc can promote growth and improve taste. zinc (Zn)
Taste loss, poor sense of smell, anorexia, growth and intellectual development below normal.
Indications: Zinc gluconate is a zinc supplement, which is mainly used for growth retardation, malnutrition and anorexia caused by zinc deficiency in infants, the elderly and pregnant women.
Recurrent oral ulcer, skin acne and other diseases
(Adverse reactions and precautions) Gastrointestinal irritation symptoms such as stomach discomfort, nausea or vomiting can be seen. But the irritation to digestive tract is less than that of zinc sulfate.
Too much zinc will lead to the lack of lead and iron, which will interfere with their absorption and utilization. Excessive zinc intake will affect the metabolism of ketone ions and iron ions.
(Drug Interaction) This product is not compatible with aluminum, calcium, strontium salt, borax, sulfate, hydroxide (alkali), protein silver and tannic acid. Combined with penicillamine, it can
Weaken the role of the latter.
(Usage and dosage) Oral. Adult one day 10 mg. Children should lose weight appropriately.
Zinc (Zn) Zinc is a trace element second only to iron in the body, but it was not until the 1960s that zinc was also an essential nutrient for the human body.
Zinc is a component of many enzymes. It is said that there are more than 100 kinds of zinc-containing enzymes in human body. In addition, zinc is related to the synthesis of protein and the metabolism of DNA and RNA. blood
Transport of carbon dioxide in cells, normal calcification of bones, development and maintenance of normal functions of reproductive organs, healing of wounds and burns, and normal functions of insulin.
A keen sense of taste and so on all need zinc.
Human colostrum is a good source of zinc. The bioavailability of zinc in different foods varies greatly, and the bioavailability of zinc in meat and seafood is much higher than that in vegetables.
Do not use drugs containing zinc as tonic.
Zinc is an indispensable trace element for human body. If the child is short of zinc, it will affect his growth and development and his mental retardation. If the child is not short of zinc and supplements zinc indiscriminately, it will be even worse.
What is the reason? It turns out that trace elements in the human body have a certain content and proportion, neither lacking nor excessive. Infants grow and develop rapidly, which is harmful to zinc.
The demand is relatively large, but not the more the better. If zinc-containing drugs are used as nutritional drugs, it will be harmful to the health if children take them every day. If zinc is supplemented too much
Too much can reduce the contents of vitamin C and iron in the body, inhibit the absorption and utilization of iron, and thus cause iron deficiency anemia. When children have too much zinc,
When calcium is reduced, under the action of magnesium ions, the activity of phagocytes can be inhibited, the immunity is reduced and the disease resistance is poor. Children often take drugs containing zinc,
It will also increase the proportion of zinc and copper in the body, affect cholesterol metabolism, increase blood lipids, promote atherosclerosis, and lead to cardiovascular and cerebrovascular diseases in the future.
The disease has laid a hidden danger. In addition, the zinc content in the body is too high, which has the risk of inducing cancer.
It can be seen that to have a correct understanding of zinc, parents should learn scientific parenting methods in order to prevent children from zinc deficiency. The first is breastfeeding, because
There is enough zinc in breast milk for baby's growth and development; Starting from 4 months, we should gradually add complementary foods to children, especially lean meat, eggs, animal livers, oysters and so on.
Peanuts, walnuts and other foods contain high zinc content, and children can eat them according to specific conditions; It is necessary to educate children from an early age to develop a good habit of not being picky about food or partial eclipse.
Accustomed to, pay attention to the reasonable balance of diet structure, coarse grains and flour and rice mixed to eat, so that children generally do not lack zinc. Usually, we should also be careful not to let children eat too much.
Sugar and sweets to avoid affecting the absorption of zinc.
If you find that your child has anorexia or pica due to zinc deficiency, you should go to the hospital and ask a doctor to check the zinc content in hair or blood, and according to your health status.
Zinc supplementation is necessary, and zinc supplements should never be regarded as omnipotent "nutritional supplements" to prevent harm to children's health.
Baby sweating, beware of zinc deficiency Wuhan Morning News (correspondent Luo Huarong) 2002-11-1207: 50:18.
Although it is late autumn, there are still many babies who go to the hospital because of sweating recently. When testing trace elements, they find that they are all zinc deficient.
Xu Haiqing from the Child Health Department of Hubei Maternal and Child Health Hospital explained that children's metabolism is vigorous and active, so they tend to sweat more than adults. Sweating a lot will
Excessive loss of zinc leads to zinc deficiency in the body. Zinc deficiency will reduce the immune ability of the body, especially the resistance of respiratory tract and digestive tract, and make the infection recur.
Dr. Xu reminded parents to supplement some foods rich in zinc for sweaty children. Generally, animal foods contain more zinc, such as oysters, lean meat and animals.
Dirty, etc. Walnuts, chestnuts and peanuts also contain a lot of zinc and can be eaten regularly.
Some children sweat a lot and are always soaked, just like washing with water. The nose tip, forehead and hair are all sweaty, even in winter.
Clothes and hats, steam transpiration.
Appropriate zinc supplementation for children with hyperhidrosis/Chen Hui (Deputy Chief Physician of Pediatrics, Beijing Haidian Hospital) 2000- 10- 17
Generally speaking, children have a strong metabolism and are active, so they tend to sweat more than adults. Besides, he is frail, suffering from rickets or tuberculosis.
Sick children also sweat.
Many trace elements in human body are excreted through sweat, and zinc is one of them. Zinc is an essential trace element for human body, which is related to children's growth and immunity.
Function, vision and sexual development are closely linked. In the process of children's growth and development, the demand for zinc is relatively large, and a lot of sweating will make zinc lose too much and sweat too much.
The incidence of zinc deficiency in children is significantly higher than that in normal children. Zinc deficiency will reduce the immune level of the body, especially the resistance of respiratory tract and digestive tract, which will lead to infection.
Repeated attacks, in turn, will cause the child to be weak and aggravate hyperhidrosis, thus forming a vicious circle. Therefore, children with hyperhidrosis should be properly supplemented with zinc.
For children under the age of 10, the World Health Organization recommends that they should consume 10 mg of zinc every day. Children eat normally every day and have no diseases.
Zinc intake from the diet can basically meet this standard. But sweaty children must supplement some foods rich in zinc, such as oysters, lean meat, fish and shrimp, animals and so on.
Viscera, etc. , you can also add some zinc agents, such as zinc gluconate. In addition, you can also take some traditional Chinese medicines, such as Radix Astragali, Fructus Jujubae, etc., which have the function of invigorating qi and astringing sweat.
Effective. At the same time, we should actively treat other diseases that cause hyperhidrosis.
Iron-containing foods: apricot spinach, cherry, jujube, fish, kelp, milk, eggs, laver, soybean, celery, rape, tomato, orange, sesame paste, auricularia auricula, bean products, animal liver, animal whole blood and animal meat.
Foods rich in calcium, such as milk and dairy products, beans, shrimp skin, kelp, nuts, etc. There is less calcium in grains, livestock and poultry meat and fruits. The absorption rate of calcium in food is relatively low. For example, the absorption rate of calcium, which is most easily digested and absorbed in milk, is only 50%, and the absorption rate of other calcium-containing foods is even lower.
The human body needs a lot of calcium, so it is still difficult to meet the human body's demand for calcium by adjusting the daily diet structure. Therefore, nutritionists suggest that in addition to adjusting the dietary structure and increasing calcium intake from food, some special groups, such as children, teenagers, pregnant women, nursing mothers and elderly women, should also take high-quality calcium preparations for a long time to meet the human body's demand for calcium.
Knowledge about trace elements and health can be found on the following websites.
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