Zinc is one of the trace elements, the content in the human body and the daily intake is very little, but the body's sexual development, sexual function, the generation of germ cells can play a pivotal role, so there is a "spark of life" and "marriage harmony". The first is to make sure that you have a good understanding of the subject matter.

The body's normal zinc content of 2-3 grams. The vast majority of tissues have a very small amount of zinc distribution, in which the liver, muscle and bone in the higher content. Zinc is the main component of dozens of enzymes in the body. Zinc is also associated with brain development and intelligence. A U.S. university found that smart, well-studied teenagers, the body contains zinc are higher than those who are dull. Zinc also promotes the role of lymphocyte proliferation and activity, to maintain normal epithelial and mucosal tissues, defense against bacterial and viral invasion, promote wound healing, reduce acne and other skin lesions, and correct the loss of taste, etc. are useful.

Zinc deficiency adversely affects all systems of the body. Especially on the gonadal maturation of puberty is more direct

Zinc deficiency

China's people's dietary structure is based on cereal food, in the cereal food zinc bio-availability is very low, only 20-40%, if the children eat more refined food, which zinc content is lost too much, it is more likely to lead to zinc deficiency.

(I) etiology:

1. Inadequate zinc intake, breast milk colostrum containing zinc is higher than mature milk, infants are not fed mother colostrum or breast milk is insufficient, and did not add zinc-rich dietary supplements in a timely manner can lead to inadequate zinc intake.

2. Malabsorption of zinc, such as chronic gastrointestinal diseases, can affect the absorption and utilization of zinc.

3. Zinc needs to increase, rapid growth and development of children prone to zinc deficiency.

4. Excessive zinc loss, such as nephrotic syndrome; hemolytic anemia, diuretics, steroids, colloid dialysis. Iron, calcium intake is too much zinc loss increases.

(2) Clinical manifestations:

Slow onset, the main symptoms are loss of taste, loss of appetite, recurrent mouth ulcers, xenophagia. Growth and development is backward, sexual development is delayed, mental anomaly, the skin appears wet diagnosis, blisters or ulcers, in the junction of the skin and mucous membranes and the extremities of the frequent occurrence of long-lasting dermatitis, alopecia, easy to concur with the infectious diseases, wound healing is slow, and so on. Zinc deficiency in pregnant mothers can cause fetal dysplasia. In addition, due to affect the operation of vitamin A can also be accompanied by night blindness.

(C) Diagnosis:

Based on dietary surveys, clinical manifestations, determination of serum zinc and zinc supplementation after a comprehensive judgment.

(4) Prevention:

Adherence to a balanced diet is the main measure to prevent zinc deficiency, generally speaking, breast milk, especially colostrum is the most rich in zinc, so the promotion of breastfeeding to prevent zinc deficiency is of great significance. Animal food is not only rich in zinc, but also has a high utilization rate, and nuts are not low in zinc.

(v) Treatment:

1. Remove the causes of zinc deficiency.

2. Adjust the diet: actively supplement a variety of zinc-rich animal foods such as liver, lean meat, egg yolk and fish.

3. Take zinc supplements.

4. Taking zinc along with increased protein intake and treatment of iron-deficiency anemia can lead to faster improvement of zinc deficiency.

A balanced diet for a normal person provides the body with about 10-20 milligrams of zinc per day, but only 2-3 milligrams can be utilized. The main substance that affects zinc absorption is phytic acid, which forms insoluble salts with zinc in the intestines. Large amounts of dietary fiber also have an effect on zinc utilization.

To ensure that there is enough zinc in the body, the first step is to adjust the diet. Animal protein foods such as fish, meat, liver, kidney, and shellfish, effective zinc content are richer, zinc deficiency can be reasonable in the diet with.