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Relevant research results show that cancer is a long-term reversible "project", and bad eating habits can lead to a variety of cancers. The tumors with the highest incidence of cancer, such as liver cancer, nasopharyngeal carcinoma, lung cancer and gastric cancer, are closely related to various unhealthy diets and lifestyles.
Liver killer: aflatoxin
Aflatoxin is the chief culprit of gastric cancer, liver cancer and esophageal cancer. It is produced by Aspergillus flavus from moldy grains and peanuts. Epidemiological investigation found that liver cancer mostly occurs in warm and humid areas where Aspergillus flavus is easy to breed, especially in areas where corn and peanuts are eaten. Aflatoxin is a mycotoxin produced by Xanthomonas, and it is one of the strongest chemical carcinogens found at present. It mainly damages the liver and has strong carcinogenic, teratogenic and mutagenic effects. At present, the International Cancer Center has designated aflatoxin as a carcinogen.
According to the survey, the incidence of liver cancer has increased significantly in areas with high incidence of liver cancer in China, especially in the warm and humid areas south of the Yangtze River. This is because the local climate is very suitable for the growth of mold, and food mildew and aflatoxin pollution are more serious. The chemical properties of aflatoxin are relatively stable and can only be destroyed at a high temperature above 280 degrees Celsius.
Experts remind: when buying peanut oil at home, you should pay attention to the quality, and don't buy too much at once. Poor quality peanut oil contains high aflatoxin, especially in Guangzhou, where the weather is humid and peanut oil is prone to mildew when stored for too long. Therefore, cereals, oils and other foods must be stored at low temperature, ventilated and dry, avoiding direct sunlight, not using plastic bags to package food, trying not to hoard food, paying attention to the quality and shelf life of food, and trying to eat it within the shelf life. Vegetable oils such as tea tree oil and olive oil can be used in life. In addition, don't eat moldy and discolored food.
Stomach killer: nitrite
Nitrite can cause esophageal cancer and gastric cancer, and it exists in preserved food. Pickled vegetables, bacon and sauerkraut all contain nitrite. Nitrosamine is the product of nitrate reduced to nitrite and then combined with amine, and nitrate and nitrite are widely found in pickled sauerkraut, pickles, salted fish, bacon and smoked food, so reducing the intake of these foods is beneficial to prevent gastric cancer.
Vegetables contain a lot of nitrate, which will be reduced to nitrite under the action of bacterial enzymes after cooking for too long, and will react with protein decomposition products in the stomach to generate carcinogenic nitrosamines.
People who eat these leftovers can easily induce gastric cancer. In addition, Director Zeng said that people in Guangdong and other coastal areas have the habit of eating shrimp paste and shrimp oil, and the content of ammonium nitrite is also high.
Experts remind: don't put vegetables for too long before eating. The results showed that the nitrite content in stored vegetables increased with the increase of storage time and temperature. If vegetables are stored in the refrigerator (2-6 degrees Celsius), the increase of nitrite is less. But after a long time, the content of nitrite will increase. Therefore, after buying fresh vegetables, you should eat them in time and don't stay too long. Putting it in the refrigerator is no exception.
In addition, other ways to adjust diet to prevent gastric cancer are: low-salt diet can reduce the intake of nitrate and nitrite. And eat more fresh vegetables and fruits, rich in vitamin C can inhibit the combination of nitrite and amine.
Lung killer: kitchen fumes
A five-year epidemiological survey of lung cancer in Shanghai shows that the risk of lung cancer will increase by 2-3 times if young and middle-aged women are exposed to high-temperature kitchen fumes for a long time. In addition, the harm of oil fume to intestine and brain nerve is also obvious.
In daily cooking, women generally like to heat vegetable oil to high temperature, stir-fry and stir-fry. Studies have shown that when cooking oil burns to 150℃, glycerol in it will generate acrolein, the main component of oil fume, which has a strong irritating taste and has a strong stimulating effect on nasal, eye and throat mucosa, and can cause respiratory diseases such as rhinitis, pharyngitis and tracheitis. In addition, kitchen fume contains a carcinogen called benzopyrene, which can cause chromosome damage in human cells and induce lung cancer after long-term inhalation.
Experts remind: women should change their cooking habits and don't let the oil pan overheat when cooking; A range hood must be installed in the kitchen; Always turn on the range hood during cooking; If there is no range hood in the kitchen, you must also open the window to ventilate and let the lampblack be discharged as soon as possible. In addition, in order to prevent lung cancer, you can go to the hospital for physical examination regularly, so as to facilitate early detection and treatment. If you find or have suspicious problems, you should consult a professional oncologist in time.
Colon killer: fried food, high-fat diet
In recent years, the prevalence of colon cancer in urban residents has risen rapidly, which is mainly related to people's tendency to eat a high-fat diet, especially "three highs and one low" (that is, high fat, high calorie, high protein and low cellulose). The more fatty foods you eat, the more likely you are to get sick.
Especially fried food. Recently, the Ministry of Health issued a notice, suggesting to avoid eating starchy foods processed at high temperature for a long time, such as fried potato chips, French fries and various fried foods. Among them, the content of acrylamide is high, and acrylamide is a carcinogen.
Experts remind: In fact, no matter what kind of cancer, a healthy and reasonable diet is very important, as is the prevention of colon cancer. Exercise properly, maintain normal weight, eat less meat and eat more fruits, vegetables and whole grains. Reasonable diet, persistent exercise and eating more fresh vegetables and fruits are the keys to prevent colon cancer. If you have intestinal symptoms, such as constipation and bloody stool. You should find a doctor to do colonoscopy immediately, so as to find and treat it early.
Bad eating habits
Studies have shown that the occurrence of cancer is caused by many factors, among which dietary factors include the following seven aspects:
Often eat hard food. Because steamed bread, steamed bread and other hard food, these foods are difficult to digest and affect the body's absorption. Moreover, these foods are easily contaminated by aflatoxin, which is a carcinogen.
Often eat a lot of salted fish, sauerkraut and other salted smoked foods. Because food contains nitrite, nitrosamines can be formed in the stomach, which is a strong carcinogen. In addition, eating sauerkraut and pickles is easy to cause cancer, for the same reason.
After eating overheated food, it was found that overheated food not only promoted the occurrence of esophageal cancer, but also induced gastric cancer.
Lack of protein and protein in food can help repair damaged cells and improve the body's immunity, so lack of protein is easy to cause cancer.
The intake of vegetables, too little fruit and insufficient fruit will all lead to insufficient vitamins, minerals and cellulose. In particular, vitamin C can block the process of cell carcinogenesis, and eating too little vegetables and fruits is easy to cause cancer.
Excessive drinking and excessive drinking will stimulate the gastric mucosa, reduce resistance and easily lead to cancer.
Irregular diet Irregular diet, overeating, or hunger will affect the body's absorption of nutrients.