1, can be used in the medicine of the great tonic class of food including cordyceps, ginseng, dried cinnamon, dried lychee, astragalus, sand ginseng, etc.. Chinese medicine points out that the more tonic type of medicine, the easier it is to change the normal endocrine environment of the child, resulting in an imbalance in physical and mental development. 2, premature animals, poultry meat, especially the neck of the bird The majority of poultry sold on the market today are fed with feed mixed with fast growth agents, poultry meat in the “ripening agent” residues are mainly concentrated in the glands of the head and neck part of poultry, therefore, eat chicken, duck, goose neck, it becomes “premature The “high risk behavior”. 3, anti-seasonal vegetables and fruits winter strawberries, grapes, watermelon, tomatoes, etc., early spring pears, apples, oranges and peaches, almost all in the “ripening agents” to help anti-seasonal or early ripening, must be avoided for young children to eat. 4, foreign fast food, fried foods, especially fried chicken, French fries and potato chips, excessive heat will be transformed into excess fat in children’s bodies, leading to endocrine disruption, leading to precocious puberty; and, after repeated heating of cooking oil, high temperature oxidation and denaturation, is also one of the causes of “precocious puberty”. The children who patronize foreign fast food more than twice a week and often eat fried puffed food, the possibility of “precocious puberty” is 2.5 times that of ordinary children. 5, some children’s oral liquid for children’s market, many of the supplements and oral liquid labeled “grow taller and stronger”, a significant portion contains hormonal ingredients. These hormones make children grow taller and stronger than children of the same age when they are five or six years old, and their bone age has reached 8 or 10 years old. And when the child enters the normal development stage, but do not see the growth. 6, excessive zinc supplementation, protein powder and other supplements.