The blacklist of cancer-causing foods comes from Beijing Health Network, saying that nine kinds of foods are easy to cause cancer. Salted fish: Dimethyl nitrite produced by salted fish can be converted into carcinogen dimethyl ammonium nitrite in the body. Shrimp sauce, salted eggs, pickles, sausages, ham and smoked pork also contain carcinogens and should be eaten as little as possible. Barbecue food: roast beef, roast duck, roast mutton, roast goose, roast suckling pig, roast lamb kebabs, etc. Because of its strong carcinogenicity, it is not edible. Smoked food: such as bacon, smoked liver, smoked fish, smoked eggs, smoked dried tofu and other carcinogens containing benzopyrene, which are prone to esophageal cancer and gastric cancer. Fried food: After frying and burning, polycyclic aromatic hydrocarbons (PAHs) will be produced. After coffee is burnt, benzopyrene will increase by 20 times. Oil cake, stinky tofu, fried taro horn, fried dough sticks, etc. Because most of the repeated oils are used, carcinogens will be produced at high temperature. Moldy substances: rice, wheat, beans, corn, peanuts and other foods are easy to get wet and moldy, and will produce carcinogenic toxin aflatoxin after being contaminated by mold. Cooked vegetables and pickled vegetables overnight: nitrite will be produced, which will be converted into carcinogenic ammonium nitrite in the body. Betel nut: chewing betel nut is a factor leading to oral cancer. Repeatedly boiled water: Repeatedly boiled water contains nitrite, which forms carcinogenic ammonium nitrite after entering the human body. Ham+lactic acid beverage: Ham and bacon in sandwiches are easy to cause cancer when eaten with lactic acid beverage. In order to preserve meat products, food manufacturers will add nitrates to prevent food spoilage and Botox growth. When nitrate meets organic acids, it will be converted into carcinogen ammonium nitrite.