”Zinc supplementation has become another hot topic of concern for parents after calcium supplementation, even surpassing the trend of calcium supplementation. Not to mention that children are often “supplemented with zinc”, even pregnant mothers, busy white-collar workers, elderly people and students who are studying for exams have joined the ranks of “zinc supplementation”. As a result, various kinds of “zinc supplement” drugs and health care products have started to be renovated in the market, with free check-ups, buy-one-get-one-free, free medicine and lottery, etc. There are many different ways to fool people. In fact, “very few people are really zinc deficient, and most people do not need additional supplementation.” Excessive zinc supplementation in children will not only fail to promote growth, but will also cause poisoning, which may affect growth and development. Although zinc deficiency can lead to anorexia and slow growth in infants and children, and decreased body resistance and slow healing of skin wounds in adults, zinc as a trace element does not have a large daily requirement. The zinc requirement increases slowly with age, increasing to a maximum of 19 mg by the age of 14-18 years. Once the age of 18 is passed, the body’s need for zinc decreases and only 11.5 mg per day is required. ”Zinc is an essential trace element that cannot be synthesized by the human body and needs to be supplied from food. Zinc is found in many foods, including dairy products and animal foods, and the amino acids produced by the decomposition of animal proteins can promote the absorption of zinc, and the absorption rate is 50%. As long as children are not picky eaters and do not have chronic diarrhea, they do not need to take zinc supplements. As long as the child eats normally, there will be no zinc deficiency. Only those who are seriously paranoid, vegetarian and malnourished for a long time may have zinc deficiency. If a child is really “zinc deficient”, it is important to find out the cause and treat it comprehensively, as many symptoms cannot be improved by zinc supplementation alone. For people who are not zinc deficient, additional supplementation may cause excess zinc in the body, which may lead to metabolic disorders and even damage to the brain. An overdose of zinc can lead to vomiting, headaches, diarrhea, convulsions and other symptoms, and may damage neurons in the brain, leading to memory loss. In addition, high zinc levels in the body may inhibit the absorption of iron and copper and cause iron deficiency anemia. It is especially important to note that excess zinc is difficult to be excreted from the body. It is important to note that some of the social statements about children having yellow hair and ADHD tendencies, and adults having trouble sleeping and remembering things are actually very one-sided. If zinc deficiency is not serious, it is better to take food supplements than medicine. The best way is to eat more zinc-rich foods such as animal liver, lean meat, egg yolk and fish. If you want to take zinc supplements, you should pay attention to two aspects: firstly, you should not take them with milk; secondly, you should not take them on an empty stomach, but after a meal.