1, garlic. It contains allicin, which can block the synthesis of carcinogen nitrosamine from many aspects. For the prevention of esophageal cancer, stomach cancer and a variety of cancers have a certain effect, to raw food better. Yin deficiency and fire should not be eaten. 2, onion. Containing some anticancer substances in garlic, but also contains glutathione, the latter can be combined with carcinogenic substances, have detoxification effect. Should also be eaten raw. 3, tomato. An important source of vitamin C, in the storage and cooking process, it contains vitamin C is not easy to be destroyed, tomatoes also contain carotenoids, lycopene, vitamin B, lycopene is the most powerful antioxidant carotenoids. Do not eat tomatoes on an empty stomach, do not eat unripe tomatoes, and do not eat them with cucumbers. 4 . Cucumber. Cucumber contains protein, fat, sugar compounds, minerals, vitamins (A, B1, B2, C, E), malonic acid and other ingredients. Eating cucumber can clear up heat in patients with both cancerous and inflammatory fevers. Patients with ascites, pleural fluid or generalized edema can have the effect of eating cucumber. 5 . Cabbage. Rich in vitamin C, carotene and calcium, potassium and so on, and has the advantages of low-fat, low-calorie. 6, celery. Contains protein, carbohydrates, fat, vitamins and minerals, while celery also contains volatile celery oil, can promote appetite. Celery contains a lot of fiber, often eaten to prevent colorectal cancer. British scientists have found that consumption of watercress can offset the damage to the lungs of toxic substances in tobacco, to a certain extent to prevent lung cancer. 7, asparagus. Rich in histone nucleic acid folic acid, trace elements sun and free state of asparagine, on a variety of cancer patients have preventive and therapeutic effects, especially on bladder cancer, lung cancer, skin cancer has a special therapeutic effect. 8, eggplant. Rich in vitamin P, tomato vegetables contain important phytochemicals, research shows that can prevent the formation of cancer cells. Eggplant anti-cancer effect has three: blood dispersal and pain relief, swelling, wide bowel. Some of the digestive tract cancer patients undergoing chemotherapy, fever elbow, can also be used as an adjuvant treatment of eggplant food. 9, sweet potato. Rich in sugar, protein, fiber and a variety of vitamins, including carotene, vitamin E and vitamin C especially. Sweet potato is also rich in lysine. Eating sweet potatoes must be steamed through, it is best to eat milk at the same time. 10, carrots. Rich in carotene, and in the high temperature is rarely destroyed, and easy to be absorbed by the body, and then into the Vitamin A class. Long-term smokers, if you can drink half a cup of carrot juice daily, the lungs also have a very good effect. Research has confirmed that eating carrots every day helps prevent cancer. Clinical studies have found that cancer patients undergoing chemotherapy, if you can eat more carrots, can reduce the reaction to chemotherapy.