Children’s zinc supplementation is best between meals, between meals in a semi-empty state, when zinc supplementation is most conducive to absorption, the best results. Zinc promotes the absorption of other vitamins, growth and development, and is an essential trace element. When children are deficient in zinc, they may suffer from loss of appetite, indigestion, mouth ulcers and other conditions, resulting in low immune function. When the body is half-empty between meals, it is more conducive to the absorption of zinc and the effect of zinc supplementation is better. When children are deficient in zinc, they should contact their doctor and take reasonable zinc supplements under the doctor’s guidance to avoid insufficient zinc supplementation or overdose of zinc. Excessive zinc supplementation may cause precocious puberty, which is not conducive to children’s health. In daily life, try to eat less sweets or white sugar, etc., too much sugar will affect the absorption of zinc.