Three-year-old children can eat chocolate in moderation, but not excessive consumption of health effects. Although the nutritional value of the chocolate itself is not high, is not a child’s essential nutrients, but can briefly bring pleasure to the child. However, it is not advisable to eat too much of it, as it is easy to cause a sense of satiety, which affects the intake and absorption of other nutrients. Excessive consumption of chocolate will affect the growth and development of the baby, chocolate also contains caffeine, will excite the nervous system affect the baby’s normal sleep. Chocolate can produce a feeling of satiety after being consumed, while the higher sugar content will affect the baby’s normal diet, which may cause nutrient deficiencies. Three-year-old babies should consume more nutritious food and reduce the intake of snacks to ensure the normal growth and development of children.