Children zinc supplement medication to supplement how long is not fixed, can be combined with the child’s body to decide, usually need to supplement about 2-3 months, if a serious zinc deficiency, usually need to supplement about 3-6 months. If the child’s body is only a slight lack of zinc, and do not have to deliberately supplement, as long as the daily consumption of more zinc-rich food can be improved. Common foods that are richer in zinc include pork, beef, liver and seafood. For example, the range of zinc content in oysters is 30.13mg/100g-77.57mg/100g. However, if the zinc deficiency is moderate, with symptoms such as yellowing hair and loss of appetite, supplements are probably needed for about 2-3 months. However, if the patient has a more severe zinc deficiency, the supplementation time will be longer, about 3-6 months. If a child’s zinc deficiency is not supplemented in time, it will have an impact on the brain’s memory, leading to symptoms such as memory loss, delayed mental development, yellowing of the hair as well as lowered immunity and poor resistance. It is important to follow strict medical advice when supplementing your child with zinc, as it can have certain side effects if too much is added.