1, fried foods, especially fried chicken, French fries and potato chips. Excessive heat will be transformed into excess fat in children’s bodies, triggering endocrine disruption, leading to precocious puberty; moreover, the cooking oil is repeatedly heated, prone to oxidation, is also one of the causes of precocious puberty. Children who patronize foreign fast food more than 2 times a week and often consume fried puffed food, the possibility of precocious puberty is 2.5 times that of ordinary children. 2, artificially farmed aquatic products and poultry, especially the neck of poultry artificially farmed aquatic products and poultry, the vast majority of the feed mixed with fast growth agents fed, “maturity promoter” residues are mainly concentrated in the glands of the head and neck part of poultry, therefore, eating the neck of chicken, duck, goose, is a high-risk behavior to promote precocious puberty. 3, anti-seasonal vegetables and fruits winter strawberries, grapes, watermelon, tomatoes, pears, apples, oranges and peaches that are listed early in late spring, almost all of them grow or mature early in the opposite season with the help of “ripening promoters”, which must be avoided for young children. 4, some children’s oral liquid Many children’s supplements and oral liquid, which are advertised to help “grow taller and stronger”, may in fact contain hormonal ingredients. These hormones make children grow taller and stronger than their peers 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 not long. 5, birth control pills and breast enhancement products these drugs and products containing estrogen, parents should keep well, to avoid young children accidentally take or use. 6, can be used in the medicine of the great tonic food including ginseng, astragalus, dried cinnamon, dried lychee, cordyceps, 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.