Apricot is the fruit with the most abundant vitamin B 17, and vitamin B 17 is an extremely effective anticancer substance, which only kills cancer cells and has no toxicity to normal and healthy cells. There is a kind of lycopene in tomatoes that also has anti-cancer effect. According to the survey, eating foods rich in tomatoes ten times a week will greatly reduce the chances of suffering from prostate cancer, breast cancer, lung cancer and digestive cancer. Garlic and onion can also help the body deal with carcinogens. Moreover, garlic and onion must be cut first and put in the air for ten minutes before they are useful. Strawberry is rich in phytic acid, which is an antioxidant, has a protective effect on cells and can inhibit the growth of cancer cells, thus having anti-cancer effect. Garlic and onion have such excellent anticancer ability, mainly because they are rich in selenium. A large number of studies have shown that selenium is very effective as an adjuvant therapy for tumors. 1997 The American Journal of Medicine reported that selenium supplementation can reduce the mortality rate of tumors by half.