Many parents, because of their love for their children, coupled with incomplete medical knowledge, are easily influenced by advertisements such as calcium and zinc supplementation and vitamin supplementation, 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 believe that children grow and develop quickly, fearing that children suffer from rickets, and are bent on giving children high calcium food and calcium tablets. But children taking too much calcium can lower their blood pressure and put them at risk of heart disease later. So it is important to give your child calcium in moderation. If you suspect rickets, you should take calcium supplements under the guidance of a doctor to avoid accidents or bogeys. 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 dosed properly and should not be taken indiscriminately. 3. What are the dangers of using too much vitamin D for children? Excessive intake of vitamin D in children will lead to hypercalcemia with increased calcium absorption in the body, causing calcium deposits on the bronchial tubes, kidneys, cornea and sclera, 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, do not take it indiscriminately.