Although the causes of some cancers are not clear, the anti-cancer measures summarized from modern medical research are still effective, which is to pay attention to hygiene and eat less carcinogenic food. Carcinogenic foods include: Salted fish
Salted fish produces dimethyl nitrite, which can be converted into the carcinogen dimethyl nitrosamine in the body. If a person frequently eats salted fish from birth to the age of 10, their future risk of nasopharyngeal cancer is 30 to 40 times higher than that of people who do not eat salted fish. Fish sauce, shrimp paste, salted eggs, pickled vegetables, Chinese sausage, ham, and smoked pork also contain a large amount of nitrosamine carcinogens and should be eaten as little as possible. Smoked foods
Smoked foods such as smoked meat, smoked liver, smoked fish, smoked eggs, and dried tofu also contain the carcinogen benzopyrene, and frequent consumption can easily lead to esophageal and stomach cancer. Fried foods
Fried foods produce carcinogenic polycyclic aromatic hydrocarbons when fried until charred. When coffee is burned, its benzopyrene content increases 20-fold. Foods like fried pancakes, stinky tofu, fried taro puffs, and fried dough sticks are mostly made with reused oil, which produces a carcinogenic decomposition product at high temperatures. Betel nut
Chewing betel nut is a factor that causes oral cancer. Re-boiled water
Re-boiled water contains nitrites, which eventually form the carcinogenic nitrous acid. Drinking unboiled water and pond water
Gastric cancer, esophageal cancer, and liver cancer are all related to drinking pond water. People who frequently drink unboiled tap water have a 21% higher risk of bladder cancer and a 38% higher risk of rectal cancer.