Does drinking milk every day cause precocious puberty? Inventory the four major hazards of precocious puberty

Childhood precocious puberty has become a major concern for parents today, with some media claiming that eating for precocious puberty. Recently, there have also been reports that drinking milk can lead to precocious puberty, or that milk hormones can be artificially added. There are many opinions. When it comes to current milk, many people will blurt out that it is all hormonally stimulated, has a poor taste and nutrition, and can also lead to premature puberty in children... is this true?

Physicians and pediatricians have repeatedly mentioned that among the girls they visit at their clinic, at the age of 67, when breasts begin to develop, pubic hair also appears. Elementary school teachers also mentioned that from the comparison of students, the physiological development status of boys in the class has not changed much, but the physiological characteristics of girls are appearing earlier and earlier. Is this directly related to drinking milk every day?

What is the difference between endogenous and exogenous hormones in milk

There are naturally several endogenous hormones present in milk, but their content is low, and no impact on human sexual development, reproductive function, and endocrine function has been found. According to the structure, milk contains sources of steroid hormones and peptide hormones, and the hormones in milk are divided into endogenous and exogenous hormones. The so-called endogenous hormones come from hormone components in cow blood, which can be transferred to the breast, passed through the blood breast barrier, and secreted into milk through milk. Some hormones can also be synthesized and secreted into milk in the breast, so the content of some types of hormones in milk is higher than that in cow blood. The endogenous hormones in milk are mainly divided into gonadal hormones (estrogen, progesterone, androgen), adrenal hormones (glucocorticoids), pituitary hormones (prolactin, growth hormone), hypothalamic pituitary stimulating hormone (growth hormone releasing hormone), and other protein related hormones such as parathyroid hormone, calcitonin, insulin, etc. The exogenous hormones in milk mainly come from hormones used for cow treatment, such as diethylstilbestrol. Of course, it is not ruled out that some people add exogenous hormone components to cow feed in order to increase milk production. Generally speaking, countries around the world have certain standards or do not allow testing for hormones, especially exogenous hormones in food.

Does drinking milk in children lead to precocious puberty

The hormones in milk are related to precocious puberty. On August 15, 2010, the Ministry of Health held a press conference to report that milk contains ineffective exogenous hormones such as diethylstilbestrol and medroxyprogesterone acetate. The detection values of endogenous hormones and pregnancy hormones comply with the content range reported by domestic and foreign literature. The levels of estradiol in milk are similar or low to those in human milk, generally lower than the levels of estradiol in cow blood, and there is no significant difference between the levels of estradiol and human milk. However, the levels of prolactin in milk, which are generally lower than those in cow blood, are higher than those in human milk, and are significantly higher than those in cow blood. According to current research evidence, there is no causal relationship between consuming milk and formula and precocious puberty.