Chinese eat half of gastrointestinal tumors!

China is a big cancer country
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By 2020, China's major digestive malignancies number of new cases among the first in the world, including esophageal cancer,Gastric , colorectal colorectal cancer and liver cancer
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DigestionStomach cancer with colorectal cancerTencent digestive cancer and diet mode of the system are inseparable
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Digestion It is estimated that 56.
5% of colorectal cancer, 59.
8% of gastric cancer, 48.
5% of esophageal cancer and 35.
2% of liver cancer in China are caused by improper eating habits, and the number of cancers induced by diet is still on the rise.

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In order to clarify the potential connection between the Chinese dietary pattern and the occurrence and development of tumors, the researchers systematically analyzed the data of the China Health and Nutrition Survey in the 20 years since 1991, and tried to find the dietary factors most closely related to tumors
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The study was jointly initiated by the University of North Carolina and the Chinese Center for Disease Control and Prevention , and collected health data of more than 27,000 people from 12 provinces or municipalities in China over the past 20 years
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Related research results were published online in the top international gastroenterology journal "Gastroenterology" not long ago
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Prevention of obesity caused by diet is a recognized risk factor for cancer
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Since 1991, especially after the new century, the obesity rate of the Chinese population has risen sharply, among which young people and rural populations are the most significant
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Over the past 20 years, the proportion of regular exercisers among people under the age of 50 has dropped by more than 50%
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Overall, the changes in eating patterns are mixed
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On the one hand, the intake of fruits and vegetables by Chinese people has increased significantly, and this trend is even more pronounced in rural areas
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In addition, the intake of dairy products in the population under 50 has nearly doubled
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 Increased intake of fruits and vegetables may reduce the risk of upper gastrointestinal tumors (gastric cancer and esophageal cancer)
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For example, the increase in the intake of citrus fruits can achieve nearly 40% of the protective efficiency of cardia cancer
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Dairy products are rich in calcium and vitamin D.
Studies have also confirmed that it has a good preventive effect on gastrointestinal tumors
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Vitamin D.
On the other hand, the consumption of red meat by urban residents in China has increased by about 40%, the consumption of processed meat has also increased by 30%, and the consumption by rural residents has doubled
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In terms of alcohol consumption, urban residents dropped by one-third, but rural residents' alcohol intake increased by one-third
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In fact, the risks of processed meat and red meat and gastrointestinal tumors have long been clear
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Processed meat has been classified as a Class I carcinogen (clearly carcinogenic to humans), and red meat is classified as a Class IIA (probably carcinogenic to humans)
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Specifically, as of the end of the study, high BMI was related to 16.
6% of liver cancer that year, and red meat consumption was directly related to 19.
0% of colorectal cancer cases .
Second, smoking is the main risk of esophageal cancer due to factors directly related cases accounted for 16.
5% .
High sodium intake is closely related to 16.
6% of gastric cancer and is the most important dietary factor for gastric cancer .
Based on this, the researchers proposed that high BMI, red meat and processed meat consumption are the three major risk factors that cause the increasing burden of cancer in the digestive system in China .
Through modeling, they found that this trend will continue until at least 2031 .
 Compared with 20 years ago, the average BMI of the Chinese population has increased from 21.
9kg/m2 to 23.
5kg/m2, which directly led to 69861 new cases of gastrointestinal cancer
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Researchers predict that by 2031, the increase in BMI will cause an additional 100,000 gastrointestinal cancer cases
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Similarly, the model predicts that by 2031, the increase in consumption of red meat and processed meat will lead to an increase of 180,000 and 60,000 cases of gastrointestinal tumors in China, which are 5 times and 3 times that of 2011, respectively
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However, the researchers also predicted some optimistic results
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For example, China’s per capita sodium intake has dropped from 7.
5g/d in 1997 to 5.
6g/d in 2011, and is expected to be further reduced to 3.
3g/d by 2031, which can make related gastric cancer cases in 20 years After that, it dropped by about 50%
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In addition, as the per capita vegetable intake increased from 252.
6g/d to 323.
8g/d, the number of related incidences of liver cancer, esophageal cancer and gastric cancer in China in 2011 decreased by about 40% compared with 1997
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The increase in fruit consumption has further reduced the growth trend of esophageal cancer and gastric cancer, and it is estimated that nearly 10,000 related cases will be reduced by 2031
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The research team finally pointed out that if no additional interventions are implemented, 1.
2 million new gastrointestinal tumors will be diagnosed in China by 2031
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If the Chinese people follow a healthy diet, 52.
1% of gastrointestinal cancers can be prevented by then
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Diagnosis However, in 2014, China's red meat accounted for 78% of the total meat production, and imports are still increasing sharply
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At present, the national dietary guidelines do not recommend limiting the consumption of red meat or processed meat, and red meat such as beef is also promoted as a healthy choice by many catering companies
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Another issue worthy of attention is that the BMI of young people in China has increased more rapidly, which coincides with the trend of younger tumors such as gastric cancer and colorectal cancer in recent years
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Moreover, if the obesity rate of the childbearing age population further increases, it may increase the possibility of obesity and metabolic disorders in the offspring, causing a vicious circle in the Chinese population
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So, what kind of diet is suitable for Chinese people? The Mediterranean diet is highly regarded internationally , but the Chinese people are relatively unfamiliar with this model
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In order to be more acceptable to the Chinese, the famous Chinese expert on the Mediterranean diet , Academician Ning Guang, proposed that the traditional Chinese "Jiangnan diet" is more suitable for the Chinese people
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The "Jiangnan diet" is even better than the Mediterranean diet in improving circulation and metabolism, thereby preventing tumors
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The Jiangnan diet is characterized by low-temperature cooking with vegetable oil.
The cooking methods are mainly steaming, boiling, and rinsing, increasing the intake of fish, shrimps, vegetables and fruits, coarse grains and soy products, with less salt and less oil
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With the launch of the "Healthy China 2030" plan and the popularization of national health concepts, it is reasonable to believe that the diet structure of the Chinese population will be greatly improved in the future, and the change of young people's dietary habits will have more far-reaching significance
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References You Wu, et al.
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