Although zinc is a trace element in the body, it is second only to iron and plays a significant role in the activity of more than 200 enzymes in the body and is involved in the metabolism of almost all cells. Undoubtedly, zinc is an indispensable substance for infants’ growth and development. So, what are the symptoms of zinc deficiency in children? 1, zinc deficient babies have abnormal taste buds, which are dependent on zinc to maintain their senses. Therefore, picky eating and heterophagia, such as love of eating dirt, slag, dust, etc., may occur. Although numerous studies have found that this ailment is not a direct manifestation of zinc deficiency. Once a child is found to have heterophagia, in addition to helping him to change this type of problem, he should also take relevant micronutrient supplements. 2. Children with zinc deficiency are prone to skin infections. The humid summer climate is prone to breeding some bacteria and viruses. At this time, if the child’s skin rash often appears, parents should not only do the relative treatment, but also check the trace elements for the child to confirm whether the child is zinc deficient. 3. Children are very active by nature and bumps are easy to happen. Many parents find that it is not easy for their children to recover once they find tiny bumps and bruises. If this happens, parents should promptly take their child to a regular hospital for a relevant examination to see if the child is zinc deficient. 4. Children with zinc deficiency have significantly lower height than normal toddlers due to less protein synthesis in the body, and serious dwarfism may occur, so parents must pay high attention to their children once they find abnormal bone development.