Zinc deficiency in children often has the following effects. First of all, it will cause children’s digestive disorders, zinc deficiency is the most common is to affect the children’s appetite, resulting in poor appetite and weight and a series of symptoms. Secondly, it will lead to damage to the mucosal barrier of children, and the integrity of the mucosa will be affected by zinc deficiency, which will cause recurrent mouth ulcers and other symptoms, and children’s intestinal mucosa is often affected, which will cause children to have chronic diarrhea.