Although the causes for some cancers have not been identified by now, however, some anti-cancer measures concluded according to the modern medical studies are very effective, that is, to pay attention to the hygiene the diets and eat less foods that may cause cancer. Such foods are as follows:

First, salted fish
Salted fish can produce dimethyl nitrate, which will further be transformed into the carcinogen dimethyl nitrosamine in the body. If a person often eats salted fish from the birth to 10 years old, the possibility of suffering from nasopharyngeal carcinoma will be 30 to 40 times more those who do not eat salted fish. Foods such as fish sauce, shrimp paste, salted egg, pickles, sausage, ham, bacon also contain a lot of nitrosamine, so you should try to eat less of them.

Second, barbecue foods
Foods such as roast beef, roast duck, roast lamb, roast goose, roast pork, etc, all contain the strong carcinogen benzopyrene. As a result, you should keep away from these foods in your daily diet.

Third, smoked foods
For example, smoked meat, smoked liver, smoked fish, and smoked eggs, all contain the carcinogen benzopyrene. Regular eating of these foods will make people susceptible to esophageal cancer and gastric cancer.

Fourth, fried foods
After the food has been fried, it will produce a carcinogenic substance called as PAH (polycyclic aromatic hydrocarbons). When the coffee beans have been burnt, the content of benzopyrene will increase by 20 times. Cruller, fermented bean curd, deep-fried dough sticks all belong to oil foods, so you should eat them as less as possible.

Fifth, mildewed foods
Foods such as rice, wheat, beans, corn, and peanut are easy to be affected with damp and become mildewed. Then these foods will be contaminated by the mycete, and will further produce a variety of cancer-causing toxins.

Sixth, overnight cooked cabbage
If the cooked cabbage has been kept for the whole night, it will produce nitrite, which will be changed into the carcinogenic substance nitrosamine.

Seventh, betel nut
Orally chewing too much betel nut is one of the most important factors leading to oral cancer.

Eighth, water boiled repeatedly.
The water which is boiled repeatedly contains nitrite, which will finally generate into the carcinogenic substance nitrosamine.

Ninth, unboiled water
For those who often drink the tap water without boiling, their morbidity of bladder cancer will increase by 21%, and the rectal cancer will increase by 38%.

Tenth, pond water
Study shows that the cause of gastric cancer, esophagus cancer, and liver cancer all have something to do with drinking pond water.