Keeping six keywords in mind, the World Cancer Research Fund (WCRF) has clearly pointed out that poor dietary habits can lead to more than 30 types of cancer, and 1/3 of the patients who die of cancer every year are related to poor dietary habits. In our daily diet, we might as well keep six keywords in mind to prevent cancer from entering our mouths as far as possible. Eating “fresh” helps prevent cancer A number of international studies have pointed out that eating more fresh food helps prevent cancer. The World Cancer Research Fund found that eating more fresh fruits and vegetables can reduce the incidence of pharyngeal cancer, laryngeal cancer, esophageal cancer and other cancers. The antioxidants, carotenoids, vitamin C, flavonoids and other active ingredients contained in fresh fruits and vegetables have anti-cancer effects. Cruciferous vegetables, in particular, contain quinones and phenols. Quinone can flush out carcinogens and accelerate their elimination from the body. Phenols block cancer cell metabolism. People should eat at least 400 grams of different kinds of fresh fruits and vegetables daily, preferably including red, green, yellow and purple colors. On the contrary, foods that have been left to mold for a long time should never be eaten. When peanuts, soybeans, rice and noodles become moldy, they can produce the strong carcinogen aflatoxin, which can lead to liver cancer and stomach cancer. In addition, try not to eat overnight food, placed more than 8 ~ 10 hours of the dish often contains nitrites, the more times the number of heating the more content. Eat “light”, eat less salt, light diet, meat control High-salt diet has a close relationship with the occurrence of stomach cancer. Japan Cancer Center Research Institute for 40,000 middle-aged people for a period of 11 years of follow-up found that, for men, salt consumption of people suffering from stomach cancer risk is twice as high as that of people who eat less salt, and in women, salt consumption of people suffering from stomach cancer risk is significantly higher than that of people who eat less salt. The researchers said that this is because the high osmotic pressure of salt can cause direct damage to the gastric mucosa after the body consumes too much high-salt food, and a series of pathological changes will then occur. High-salt pickled food contains a lot of nitrite, which can be combined with amines in food to form amine nitrite, which is highly carcinogenic. It is recommended that people do not eat more than 5 grams of salt per person per day. Cooking should also pay attention to the existence of “hidden salt”, such as monosodium glutamate, soy sauce, sauces, seasoning packets also contain salt, need to control the amount. In addition to less salt, light diet should also control the amount of meat. The U.S. National Academy of Sciences reported that fat is most closely related to cancer, especially breast cancer, colorectal cancer and prostate cancer. World Cancer Research Fund suggests that weekly intake of animal and poultry meat should be less than 500 grams, the best not to eat, as little as possible to eat processed meat products. Three eat “coarse” dietary fiber to stimulate gastrointestinal peristalsis The lack of dietary fiber in food is one of the important reasons for the increase in cancer patients in recent years. A variety of food is originally a source of dietary fiber, but by the impact of processing, processing the more fine, the more dietary fiber loss. Therefore, it is best for people to deliberately eat some “coarse”. Dietary fiber-rich foods include: black rice, cornmeal, oat flour, fresh corn, millet and other staples; mushrooms, mushrooms, beans, broad beans, garlic shoots, wild rice and other vegetables; pomegranates, mulberries, pears, kiwi, dates and other fruits; black sesame seeds, pine nuts, dry almonds, dry walnuts and other nuts. After entering the body, dietary fiber can stimulate gastrointestinal peristalsis, promote defecation, reduce intestinal absorption of carcinogens, and prevent colorectal cancer. It is worth recommending that beans have less fat and more fiber, which can not only effectively reduce the risk of endometrial cancer, but also prevent breast cancer due to the high content of antioxidants. Roughage is also rich in calcium, magnesium, selenium and other trace elements and a variety of vitamins, which can promote metabolism and enhance physical fitness. Among them, selenium is a kind of anticancer substance, can be with the body of various carcinogens “tied together”, through the digestive tract out of the body. It is recommended to increase the intake of coarse grains in the daily diet. For example, oat flour, cornmeal and flour mixed together, made into a variety of bread or noodles; red beans, mung beans mixed together to cook a variety of beans porridge. But note that no matter which kind of coarse grains are steamed and boiled, such as less oil, less salt cooking method is better. Four eat “bitter” lemon bittersweet enhance resistance Many people rejected with a little bitter food, but do not know, bitter food has a very good anti-cancer effect. Lemon, citrus, grapefruit, grapefruit and other fruits are a little bitter, because they contain a substance called “lemon bitter”. Citrinin is a phytochemical usually found in ripe fruits, especially lemon fruits. Studies over the years have found that citrulline is effective in boosting the immune system and may help tumor patients build up their resistance. American research found that consumption of citrus or orange juice can be absorbed lemon bitters, oral cancer, lung cancer, breast cancer, stomach cancer and other preventive effects. Citrus fruits also contain a variety of flavonoids and carotenoids, also has a cancer prevention effect. U.S. research has also found that other natural bitter substances in food also have certain health effects. For example, naringenin in lemon and grapefruit, tea polyphenols inside tea, and polyphenols in red wine and chocolate, which are ingredients that help prevent cancer and heart disease. Quinine extract in bitter melon boosts the immune system and helps control blood sugar. Therefore, cancer prevention diet must eat some bitter. Eat “acid” to inhibit the growth of cancer cells Vinegar is the most common condiment in the kitchen of Chinese people, containing a variety of amino acids and organic acids. Research has confirmed that vinegar contains an enzyme with bactericidal effect, which can inhibit the growth of cancer cells and reduce the strong carcinogenicity of aflatoxin. In addition, vinegar can prevent high blood pressure, high blood fat, high blood sugar, reduce fatigue and so on. Vinegar is suitable for many times in cooking, which is both healthy and delicious. For example, fried shredded potatoes, fried bean sprouts, fried lotus root slices, put some vinegar, can make the dishes crispy and refreshing; fried kale, put some vinegar can make the dishes more colorful. In addition to vinegar, yogurt is also a common sour food. U.S. research has confirmed that often drink yogurt can inhibit tumors. Researchers first artificially make rats suffer from tumors, and then divided them into two groups. A group of feed with yogurt, the other group does not add. The results show that the former tumor is obviously inhibited, compared with the latter, the tumor cells reduced by 30% to 35%. The reason for this, researchers believe that lactic acid helps inhibit the growth of harmful bacteria such as E. coli, and can phagocytosis of carcinogenic substances, weakening its carcinogenicity. Yogurt is good but not too much food, adults do not drink more than 400 grams of yogurt a day, unless it is a great demand for calcium pregnant women, lactating mothers or developing adolescents (yogurt complementary calcium is difficult to say, not to mention that China’s yogurt is not yogurt is even more difficult to say!) . Excessive stomach acid should avoid drinking before meals, drinking yogurt on an empty stomach can promote defecation, suitable for constipation, on the contrary, diarrhea is not suitable for ordinary people before and after meals can be. Six drink “tea” to block the formation of cancer cells The physiological effects of tea are numerous. Refreshing, improve efficiency; lowering fat and blood pressure, maintain health; liver and eyesight, radiation and anti-cancer; anti-aging to prolong life. Tea ceremony is the best way to maintain human health. However, the concept of “unity of heaven and man” indicates that only by adapting to the natural law of change, appropriate for the time, appropriate for the person, pay attention to certain contraindications of tea drinking, in order to live a long and healthy life, better health. Tea and Health Research Office of Central South University announced to the community that they first used gene chip technology to reveal the molecular mechanism of tea in the polyphenol compound EGCG anti-leukemia, thus unraveling the tea-induced cancer cells “suicide” mystery. Thus, human beings have taken a key step in the development of highly efficient and low-toxicity anti-leukemia drugs. The medical information retrieval agency authorized by the Ministry of Health checked domestic and international databases and confirmed that this is the first time in the world to use gene chip technology to study the gene expression profile of the polyphenol compound EGCG in tea against leukemia. The Tea and Health Research Laboratory of Central South University announced to the society that they have revealed the molecular mechanism of the anti-leukemia polyphenol EGCG in tea by using gene chip technology for the first time, thus unraveling the mystery of tea-induced “suicide” of cancer cells. The development of highly effective and low-toxicity anti-leukemia drugs has been a key step on the road of human beings. The possible anti-cancer effect of tea has always been the focus of medical attention. As early as 1997, the Tea and Health Research Laboratory of Central South University has found that the polyphenolic compound EGCG in tea can induce cancer cells to “commit suicide”—flow cytometry has observed that the apoptosis of leukemia cells in a certain concentration of EGCG and within a certain period of time is not only a result of the use of EGCG, but also of the use of EGCG in the treatment of leukemia. Flow cytometry observed that the apoptosis rate of leukemia cells reached 71.76% within a certain concentration and time of EGCG, but the mechanism of its action is not very clear. It was found that EGCG could inhibit the low expression of oncogenes and induce the high expression of anticancer genes, and the altered expression of these genes suggested that the polyphenolic compound EGCG in tea induced leukemia cells mainly by affecting the processes of protein degradation, DNA replication and repair, cell cycle and signaling pathways.