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 mutton skewers, etc., which are not suitable for eating because of their strong carcinogens.

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 scorching, polycyclic aromatic hydrocarbons (PAHs) are produced. After coffee is burnt, benzopyrene will increase by 20 times. Oil pancakes, stinky tofu, fried taro horn, fried dough sticks, etc., because most of them use repeated oil, will produce carcinogens at high temperature.

Moldy substances: rice, wheat, beans, corn, peanuts and other foods are easily mildewed by moisture, and after being contaminated by mold, they will produce carcinogenic toxin aflatoxin.

Cooked cabbage and pickled cabbage overnight: it will produce nitrite, which will be converted into carcinogenic substance of ammonium nitrite in the body.

Betel nut: chewing betel nut is a factor causing oral cancer.

Repeatedly boiled water: Repeatedly boiled water contains nitrite, which forms carcinogenic ammonium nitrite after entering 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 with organic acids, it will be transformed into a carcinogen, ammonium nitrite.