The symptoms of calcium deficiency and zinc deficiency in two-year-old babies are as follows: 1. If it is a zinc deficiency, it is generally manifested as low appetite, poor digestive function, easy mouth ulcers and recurrent oral inflammation. 2. The most important manifestation of calcium deficiency is in the child’s sleep problems, which are usually manifested as restless sleep, easy waking up and irritability. Whether it is zinc or calcium deficiency, it will eventually affect the child’s quality of life and make the child more irritable than usual, so clinical intervention is needed to treat the deficiency. Zinc sulphate syrup or zinc lysine glucosamine granules.