Many parents, because of their love for their children, coupled with incomplete medical knowledge, are easily influenced by calcium and zinc supplementation and vitamin supplementation advertisements, so what are the dangers of too much calcium and zinc supplementation and vitamin D for children? 1. What are the dangers of too much calcium supplementation for children? Many young parents think that their children are growing fast and are afraid of rickets, so they just give their children high calcium foods and calcium tablets. But children taking too much calcium can lower blood pressure and put them at risk of heart disease later. So it is important to give your child calcium in moderation. Those who are suspected of having rickets should take calcium supplements scientifically under the guidance of a doctor to avoid accidents or burying the roots of the problem. 2. What are the dangers of too much zinc supplementation for children? Too much zinc can cause zinc poisoning. Children should take zinc in scientific doses to ensure safety and reliability. Too much zinc can lead to acidosis, loss of appetite, epigastric pain, mental depression and even acute renal failure. Therefore, zinc supplementation for children should be taken in good doses and should not be taken indiscriminately. 3. What are the dangers of using too much vitamin D in children? Excessive intake of vitamin D in children will lead to hypercalcemia and calcium deposition on bronchus, kidney, cornea and sclera, which will be manifested as not wanting to eat, indifferent expression, dry skin, vomiting, excessive drinking and urination, weight loss, etc. If you are pregnant with a child who is deficient in calcium, zinc or vitamin D and other trace elements, for safety reasons, it is best to take your child to the hospital for a checkup to see if there is a deficiency in your body, and do not supplement indiscriminately.