1, apples: recent studies have found that vitamin C contained in apples can impede the generation of carcinogenic substances in the body nitrosamines, destroy a certain enzyme activity produced by the proliferation of cancer cells, and even make the cancer cells that have been generated into normal cells. 2, seaweed: modern medical research has confirmed that seaweed foods such as kelp, nori and wakame have certain anti-cancer effects. Research has found that the blood of cancer patients is acidic, and kelp contains high calcium, can regulate and balance the pH of the blood, play a role in cancer prevention; at the same time, it contains fiber yarn is not easy to be digested, eaten to increase the amount of stool, promote the excretion of certain carcinogens in the intestines, which will help the human body to prevent cancer health care. 3, jellyfish: scientists extracted from jellyfish jellyfish, has a special physiological role in antibacterial, antiviral and anticancer have a strong pharmacological effect. 4, scallop: modern medical research has confirmed that the scallop silver powdery scales contain a large number of proteins, inorganic salts and fats, acid treatment can be produced after guanine hydrochloride, and guanine hydrochloride is the main raw material for the synthesis of anti-cancer drugs six thioguanine, is the treatment of acute leukemia and other cancers of the effective drugs. 5.Bee milk: According to the research report of domestic and foreign experts in recent years, in the bee milk, a special bee lactic acid is newly found, which has obvious effect of preventing and treating cancer. 6, monkey head mushroom: monkey head mushroom has been made into monkey head mushroom tablet by Chinese pharmacy, used for the prevention and treatment of gastric cancer, esophageal cancer, etc., the effective rate of 69.3%, the efficiency is 15%. 7, Shiitake mushroom: Mushroom is a kind of food which is good for health and has anti-cancer effect, among which the most prominent one is shiitake mushroom. Because shiitake polysaccharide can enhance cellular immunity and humoral immunity, similar to the effect of tonic Qi. It is said that woodcutters in the mountains of Bohemia in the Czech Republic never suffered from colds and cancer because they often ate wild shiitake mushrooms. 8, soybean: Soybean contains at least five kinds of anti-cancer substances. One of them is similar to a drug that is usually used to treat estrogen-dependent breast cancer, and it has been used in large-scale clinical trials to understand its preventive effect on breast cancer. 9, green vegetables dark green vegetables have cancer prevention. Such as spinach, lettuce, etc., they are rich in antioxidants, including folic acid, lutein and so on. Scientists have proposed that the darker the color of vegetables, the higher the antioxidant content, the stronger the anti-cancer effect. 10, tea: some people will tea mixed in the feed, fed to the body of cancer cells in mice, the results found that 3 weeks after the cancer cells are inhibited to reduce. It is also reported that some substances in the tea by blood circulation can inhibit cancer cells in all parts of the body. 11, wheat bran: bran can not only auxiliary treatment of diabetes, blood cholesterol, high blood fat, constipation, obesity, dental caries and other diseases, but also to prevent the occurrence of intestinal cancer. Bran is rich in cellulose, cellulose is an insoluble fiber, can dilute a variety of carcinogens in the intestinal tract, accelerate the speed of food through the intestinal tract, prompting defecation, reducing carcinogens and intestinal contact opportunities.