Original Ruan Guangfeng Ruan Guangfeng nutritionist

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Chicken is a kind of meat that we usually eat. Fried chicken, braised chicken, spicy chicken and boiled chicken are all delicious. Besides, chicken wings, chicken legs, chicken gizzards and chicken offal are all delicious.

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Recently, however, Xiaoyu, who is not yet 8 years old in Hangzhou, felt breast swelling and pain. When she took a bath at night, she found that her breasts became bigger. Her family took Xiaoyu to the hospital for examination and was diagnosed with precocious puberty. The doctor said that he has also received many children with precocious puberty in these years, and the youngest is only 5 years old.

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The doctor said that children like Xiaoyu should not eat foods containing hormones, especially chicken, in their daily diet, which will make their children prosperous and develop early.

Chicken is really a hormone, and eating it will lead to precocious puberty? Let’s talk about precocious puberty and diet today

01

What is precocious puberty?

Precocious puberty (PP) refers to that boys have secondary sexual characteristics before the age of 9, girls have secondary sexual characteristics before the age of 8, or girls have menstruation before the age of 10 [1].

According to the pathogenesis and clinical manifestations, precocious puberty can be divided into true precocious puberty and false precocious puberty [2].

True precocious puberty, that is, central precocious puberty (CPP), also known as gonadotropin-releasing hormone-dependent precocious puberty, means that the hypothalamus secretes and releases gonadotropin-releasing hormone (GnRH) in advance, which activates the pituitary gland to secrete gonadotropin, causes the development of internal and external genitalia and secondary sexual characteristics until the reproductive system matures.

Pseudo-precocious puberty, that is, peripheral precocious puberty, also known as non-gonadotropin-releasing hormone-dependent precocious puberty, refers to the increase of sex steroids to puberty level caused by gonadal tumors, adrenal cortical hyperplasia or other reasons.

Pseudo-precocious children show early secondary sexual characteristics, but they do not have reproductive ability.

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02

What causes can lead to precocious puberty?

The causes of precocious puberty are very complicated, which may be the result of the joint action of many factors. Including genetic factors, diseases, obesity and environmental factors [3]:

1. Genetic factors

Genetic factors are one of the important causes of precocious puberty. At present, it has been confirmed that the mutation of some genes will lead to precocious puberty. Gene polymorphism is also closely related to the onset of puberty, and some loci polymorphism will affect the transcription or expression of genes and the function of gene products. In addition, some hereditary diseases may lead to precocious puberty.

2. Illness

Aside from genetic factors, the main causes of precocious puberty are various diseases.

For example, the most common cause of central precocious puberty is organic diseases of the central nervous system, such as hypothalamic and pituitary tumors or other central nervous system diseases [4]. Some guidelines for diagnosis and treatment also clearly point out that central precocious puberty must be diagnosed, and special attention should be paid to excluding organic CPP caused by nervous system abnormalities and secondary diseases.

Image source [5]

The main causes of pseudoprecocious puberty are also some diseases. For example, hereditary ovarian dysfunction, benign ovarian occupying lesions such as autonomic ovarian cysts, estrogen-secreting adrenal cortical tumors or ovarian tumors, and ectopic human chorionic gonadotropin-secreting tumors may lead to precocious puberty in girls; Congenital adrenal hyperplasia), adrenal cortical tumor or testicular interstitial cell tumor, ectopic HCG secretion tumor, estrogen-producing adrenal cortical tumor or testicular tumor are easy to cause precocious puberty in boys.

Image source [6]

3. Exogenous hormones/environmental interference

Taking a large amount of estrogen, hormone-like substances and endocrine disruptors in the environment, such as phthalate esters, polychlorinated biphenyls and bisphenol A [7], as well as some pesticides and heavy metals, may also lead to precocious puberty in children.

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4. Obesity

More and more evidence shows that childhood obesity increases the risk of puberty precocious puberty, and the risk of girls is significantly higher than that of boys [8].

As you can see, the main cause of precocious puberty is actually some diseases-related reasons. Therefore, the guidelines for the diagnosis and treatment of precocious puberty suggest that if children really have precocious puberty, they should first check whether there are diseases and other effects.

03

Food can lead to precocious puberty?

In fact, ordinary food and diet are not directly related to precocious puberty.

But as I said before, obesity will increase the risk of precocious puberty [9]. Therefore, the food and diet that can easily lead to obesity have something to do with precocious puberty.

For example, children’s living conditions are much better now than before. They often eat fried food, often drink sweet drinks, and seldom exercise … These are all easy to lead to overweight and obesity, which will increase the risk of precocious puberty from the side.

To say that it has a certain impact, supplements and health care products count as one. Nowadays, many parents will give their children supplements and health care products, such as those that grow taller and promote growth. Hormones are often added to these supplements, which will lead to precocious puberty.

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04

Chicken is full of hormones, which leads to precocious puberty?

The argument that chicken leads to precocious puberty has been widely circulated. The main reason is that chickens now grow fast and come out in 40 days. They are all fast-growing chickens with hormones, which will lead to precocious puberty.

In fact, this statement is completely unwarranted.

The fast-growing chicken we are talking about now belongs to the "fast-growing white feather chicken" [10]. Its rapid growth is the result of improved variety breeding and scientific feeding, and has nothing to do with hormones [11].

This kind of chicken has a high feed conversion rate. It grows fast and is big, and now they eat better feed. These feeds are not just mixed with corn flour and diced Chinese cabbage. They are similar to the "nutritious meals" we often hear now. They are all made by scientific combination of raw materials selection, ingredient ratio, production technology and feeding scheme. Therefore, it can be released in about 40 days now, and the weight can reach 2-3 kg [12].

You can see that from 1957 to 2005, the breeding of chickens has changed [13]

We often see on the Internet and TV that the problem of exposing chickens is actually the abuse of "antibiotics" and has nothing to do with "hormones". If you really take hormones, the health of chickens will be bad, and hormones are quite expensive.

Generally speaking, there are no more hormones in chicken. Precocious puberty really has nothing to do with eating chicken. At present, there is no evidence and case that chicken or other meat may cause precocious puberty in the world, and there is no treatment guide for precocious puberty that says you can’t eat chicken. Moreover, chicken is white meat that is usually said in nutrition. In fact, it is quite good for health, so you don’t have to worry about eating it normally.

However, if you always fry chicken and add a lot of oil when eating chicken, it will lead to too much energy and increase the risk of obesity, so it is wrong to eat it.

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05

How to prevent precocity?

Diet is mainly to prevent obesity, while avoiding accidentally eating hormones. From the perspective of diet and life, it is suggested that:

1. Improve eating habits and prevent overweight and obesity.

More and more evidence shows that childhood obesity increases the risk of precocious puberty, and the risk of girls is significantly higher than that of boys. Parents are advised to help their children improve their eating habits from an early age, develop good eating habits, reduce the intake of high-calorie, fried, high-oil and high-sugar foods, such as eating less fried foods and drinking less sugary drinks, and increasing the variety of foods to help control weight.

Specific to chicken, try to eat less chicken cooked by fried chicken, braised chicken, spicy chicken and other cooking methods, which is oily and high in energy, and boiled and steamed chicken is better; When eating chicken, give priority to chicken breast, which has less fat and can better prevent obesity.

2. Increase physical exercise and physical activity.

This is actually to prevent obesity. By increasing energy consumption, let children do outdoor activities every day instead of always staying at home.

3. Don’t eat supplements and health foods indiscriminately.

There is no need to worry about the hormones in normal food itself. However, many so-called supplements and health products may have added exogenous hormones, which may easily increase the risk of precocious puberty. As long as children eat normally and pay attention to balanced nutrition, most health care products and supplements are unnecessary.

References:

[1] Tan Qian, Huang Lu, Yang Jieping. Research on the emotional situation and influence factors of children’s early sexual maturity [J]. Frontier of Medicine and Medicine, 2020,10(27):8-10.

[2] Ministry of Health of the People’s Republic of China. Guidelines for the diagnosis and treatment of precocious puberty (for Trial Implementation) [Wei Ban Yi Zheng Fa (195)No. ][J]. China Journal of Child Health, 2011, 19 (4): 390-392.

[3] Sun Yanyan, Yu Jian. Research progress on the etiology of precocious puberty [J]. journal of applied clinical pediatrics Journal, 2011,26(20):1599-1601.

[4] Liang Liyang, Li Fangping. Diagnosis and treatment of precocious puberty [J]. Drug Evaluation, 2016,13(03):27-31.

[5] Endocrine Genetics and Metabolism Group of Pediatrics Branch of Chinese Medical Association. Consensus on diagnosis and treatment of central precocious puberty [J]. Chinese Journal of Pediatrics, 2015, 53(6): 412-418.

[6] Chen Ruimin. Research progress on the etiology of peripheral precocious puberty [J]. journal of applied clinical pediatrics Journal, 2012,27(20):1545-1547.

[7] Jing Xu. Study on the correlation between precocious puberty in children and lifestyle and family factors [D]. Zhejiang: Hangzhou Normal University, 2017.

[8] Puberty Group of Women’s Health Branch of Chinese Preventive Medicine Association. Consensus on diagnosis and treatment of female precocious puberty [J]. chinese journal of woman and child health research, 2018,29(2):135-138.

You Xiaomeng, Shan Chuan, Shen Xiuhua. Research progress of childhood obesity and precocious puberty [J]. Journal of Shanghai Jiaotong University (Medical Edition), 2012,32(7):949-951.

[10] Boya. Fast-growing broilers will still be the leading variety of broiler production in China [J]. Agricultural Knowledge (Scientific Breeding), 2013,(9):16-16.

[11] AARON Li, Du Zhiqiang, Wang Shouzhi, et al. The past, present and future of white feather broiler breeding [J]. China Poultry, 2016,38(19):1-8.

[12] Gao Lin, Bai Zijin. On the technical system of healthy and ecological breeding of fast and large white feather broilers [J]. Journal of Shenyang Agricultural University (Social Science Edition), 2015,17(2):213-218.

[13] https://www.washingtonpost.com/news/wonk/wp/2015/03/12/our-insatiable-appetite-for-cheap-white-meat-is-making-chickens-unrecognizable/.

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　　Recently, a video of a father taking his 19-year-old daughter to set up a stall to sell leek boxes caused a heated discussion among netizens. The girl in the video just graduated from high school, and now she is selling leek boxes with her father in Nanjing because she didn’t go to college. In the video, his father’s remark that "undergraduate and graduate students are not used, and it took hundreds of thousands of years and time was delayed" became a "explosive point". Some netizens thought that the father was short-sighted, and some netizens said that what Uncle said was not unreasonable. What is the story behind this video? Yesterday afternoon, Zi Niu journalist interviewed the father and daughter next to Jiangsu Maternal and Child Health Hospital.

　　Zi Niu journalist Yang Zhimin Intern Yin Jiahui Guan Yuwen/photo

　　Site visit

　　The leek box booth is booming.

　　The girl is skillful in action.

　　Yesterday afternoon, Zi Niu news reporter came to Jiangsu Maternal and Child Health Hospital, and the girl’s family has not yet set up a stall. The grandmother selling sweet potatoes told the reporter that the business selling leek boxes (a kind of snacks wrapped in leek stuffing, editor’s note) was very good. Within two minutes, a tricycle drove to the door of the Maternal and Child Health Hospital, followed by a tall girl in a black jacket. This is the girl Xiao Zhao who sells leek boxes in the video.

　　Before the tricycle stopped, two or three people who bought leek boxes flocked around. The girl’s father quickly set up the stall and began to knead the dough. After kneading, he cut the dough into small pieces. Xiao Zhao rolled the dough into a round dough and put a spoonful of prepared stuffing, which is made of vermicelli, leeks and eggs. Xiao Zhao’s movements are also very skilled. The fragrance of leek eggs drifted away, attracting many customers to queue up to buy.

　　Compared with the image of pure appearance, slim figure and elegant temperament in the video, Xiao Zhao changed his style yesterday: black leather jacket with long pendant earrings, with light makeup, which is more fashionable.

　　Beautiful girls set up stalls, coupled with the fragrance of leek boxes, the business is quite good. During the interview period, the people who came to buy it almost never stopped. Even the grandmother who sold sweet potatoes next to her came to buy two, and the father and daughter could not stop. Many people buy leek boxes while chatting with their father and daughter. In addition to the leek box, the topic is very interested in the father and daughter themselves, and I ask about them from time to time. Although Xiao Zhao, who has a little Suqian accent, has questions and answers, they are extremely "refined" and never say a few words.

　　With the advantage of girls of the same age, Zi Niu news reporter proposed to take Xiao Zhao to the side for a separate interview, and the girl’s father readily agreed.

　　Girl’s story

　　I failed in the college entrance examination last year.

　　Selling leek boxes with my father

　　The girl named Zhao Yan is just 19 years old this year. After graduating from high school last year, she followed her father to Nanjing to set up a stall to make leek boxes. Zhao Yan’s hometown is Suqian, Jiangsu Province. Because she was interested in hosting in high school, she participated in the art test training for broadcasting and hosting majors at school. Last spring, Zhao Yan applied for the joint art examination of five universities, including Nanjing Art Institute, Communication University of China, Nanjing Normal University, and her final art examination score reached the score of the director major of Nanjing Normal University. However, Zhao Yan was worried that she couldn’t be admitted to the university because of her poor performance in culture class. In April after the art test, she came to her father who was setting up a stall in Nanjing to do business, and asked him to take her to try the flight attendant training of China Southern Airlines. However, after learning that flight attendant training takes four years and costs a total of more than 100,000 yuan, the father and daughter decided to give up the flight attendant training after careful consideration.

　　Xiao Zhao said: "As long as a subject fails, you can’t go to work in the end. I can’t guarantee that every major can pass. In addition, you have to find your own job. This is a bowl ‘ Youth rice ’ , work is unstable. " The father on the side also said that her daughter is almost 20 years old now and will be 24 years old in four years, which is still risky.

　　In June last year, the girl returned to her hometown in Suqian to take the college entrance examination, but her grades were not satisfactory and she didn’t get the admission notice in the end. She decided to make a leek box with her father first.

　　Zhao Yan smiled and told Zi Niu news reporter that you don’t need to learn to make leek boxes, just follow and see. But when it comes to plans for the future, the girl hesitated slightly: "I haven’t thought about what I want to do in the future. I feel that it’s not too hard to do this now. It’s good to learn a craft and earn money."

　　Netizens are hotly discussing.

　　Is it better to go to junior college or set up a stall to do business?

　　On March 13th, a video of Zhao Yan selling leek boxes with her father was posted on the Internet, which attracted the attention of many netizens. In the video, Zhao Yan’s father said that "it is better to do business than to spend more than 100,000 yuan in junior college for 4 years", which triggered questions and discussions among netizens.

　　Some netizens agreed. The netizen "Sean is a little baa" said that setting up a stall now is higher than the salary of the university. Netizen "child photographer _HAN" commented, "I agree with this father’s idea very much! Unlike in the past, most college students have low eyes and are bent on finding a good job after graduation. If they can’t find a job, they will eat at home. It is better to learn a skill. "

　　Many netizens also expressed their opposition. Netizen "If you love it now" commented that there is still a big difference between junior college and students with only high school education in a few years. Netizen "I’m an honest man" said that if I keep doing this, my vision will become narrow, and why this kind of thing becomes a topic is because it doesn’t conform to the normal development of teenagers.

　　Parental response

　　Attach importance to education, but the situation at home can only be taken slowly.

　　In the face of questions from netizens, Zhao Yan’s father explained to Zi Niu news reporter, "The person who made the video at that time asked me why my daughter didn’t go to college, and I said I didn’t get it. Then she said that she couldn’t give her a junior college if she didn’t pass the exam, so I rushed her. "

　　Zhao Yan’s father said frankly, which parents don’t want their children to be good, but they can only take it slowly and have a process.

　　"I didn’t come to Nanjing to work when I was 20 years old. I graduated from primary school. I didn’t go to school much in my life. I am bitter but I can’t let my children follow me." Father Zhao said, "I still attach great importance to education. My family has a younger son. He is in the sixth grade at the age of 12 and spent more than 20,000 yuan to make up lessons for him. After the video became popular, a media asked my daughter to go on an internship in the past two days. My daughter was a little worried about not doing well. Today, I also encouraged her to say that she would practice with reporters and teachers and learn a lot, even if she didn’t earn much money. "

　　Selling leek boxes does not have the problem of high or low occupation. According to Wang Xian, a worry-free human resources expert in the future, Zhao Yan is a sensible girl who sympathizes with her parents’ hardships in raising a family and actively shares the responsibility. In this case, experts give three opinions on the right for the reference of parents and children.

　　Please listen to three opinions of professional experts.

　　A

　　Don’t lower the possibility of the future of life to a very low level.

　　B

　　Lack of career planning is the shortcoming of current education.

　　C

　　Career planning is too ambitious, which is also not conducive to growth.