Beware of “eating” cancer, this is not a sensational story. Experts point out that the occurrence of most cancers is related to poor living and eating habits, and once the diet often contains carcinogenic substances, it is easy to promote liver cancer. We suggest people to establish a reasonable and healthy dietary structure, develop good dietary habits and master some dietary cancer prevention knowledge. Do not eat moldy food. Aflatoxin in fungi is a carcinogenic substance. Aflatoxin carcinogenicity than the recognized carcinogens nitrosamines 75 times stronger, the shortest time required to cause cancer is 24 weeks. Prevention of fungal contamination of food, should pay attention to: First, home storage of peanuts, corn, dried white potatoes, rice, millet, etc. must be dried and stored in a dry and ventilated environment. Second, moldy peanuts, dried potatoes, dried turnips and other human and animal, poultry can not eat. Third, peanut oil and cottonseed oil are not suitable for long storage. Animal and vegetable oils should not be eaten after the smell of harshness. Stale oils contain malondialdehyde, which can mutate the structure of proteins in the body, leading to the loss of normal cell function and to the initial transformation of cancer cells. Therefore, animal and vegetable oils should not be stored for too long, has deteriorated to produce harsh taste of oil should not be eaten. Researchers found that rice bran fiber can prevent cancer. Researchers believe that rice bran not only contains rich B vitamins, is conducive to the protection of the liver, and because the human body lacks the enzyme to digest rice bran fiber, so the adsorption of harmful substances rice bran fiber will all be eliminated from the body. For liver disease or hepatitis B surface antigen long-term chronic carriers, often with rice bran conditioning recipes to adsorb and excrete harmful substances in the digestive tract, is indeed a “good formula” to prevent cancer of the digestive tract.