The best time of the day for children to take zinc is about 1 hour after dinner, which is good for zinc absorption, followed by sleep to improve zinc absorption and utilization. Zinc is an indispensable trace element for children’s growth and development, and timely supplementation can promote children’s intellectual development, increase appetite and improve body immunity. Zinc deficiency in children may affect their growth and development, leading to mental retardation, short stature, and decreased immunity and frequent colds. If children are anorexic, paranoid or omnivorous, have frequent mouth ulcers, have stunted growth and are mentally retarded, it is recommended that they take zinc supplements in a timely manner. It is usually best to take it one hour after dinner, or between meals. For dietary supplementation, zinc-rich foods such as oysters, squid, nori, red meat, animal liver, etc. can be taken at three meals a day. You should pay attention to regular trace element checkups at the hospital, and your diet should be coarse and fine to avoid long-term consumption of refined foods. Try to avoid taking zinc and calcium supplements at the same time, so as not to affect the absorption of zinc.