Usually eat a small amount of snacks on children will not have any harm, a large number of snacks every day may affect growth and development, cause dental caries, weight gain, and so on. 1. Impact on growth and development: children usually eat too many snacks satiety is strong, may cause a decrease in appetite, the normal diet can not be enough intake, the body can not get the appropriate nutrition, may affect growth and development. 2. cause dental caries: children like to eat candy cookies snacks, these snacks residues left in the teeth, not timely cleaning teeth, teeth, bacteria breeding, may form dental caries. 3. Weight gain: children eat too many snacks, snacks contain carbohydrates, fat, calories are relatively high, may cause children’s weight gain, leading to obesity and so on. Children eating a lot of snacks may have other effects, it is recommended to minimize snacking in general, and if you are not feeling well, seek medical attention in a timely manner.