Breast cancer is one of the most common malignant tumors in women, with an incidence rate of 7-10% of all malignant tumors in the body, according to statistics. Its incidence is often related to heredity, and the incidence is higher in women between 40-60 years old, before and after menopause. What are the issues that need to be noted in breast cancer diet? Breast cancer diet should pay attention to: 1. Supply protein foods that can be easily digested and absorbed, such as milk, eggs, fish and soy products, which can improve the body’s ability to fight cancer. Among them, milk and eggs can improve the protein disorder after radiotherapy. 2.Eat appropriate amount of sugar to supplement calories. Patients with high-dose radiation therapy can have their body’s sugar metabolism destroyed, glycogen drops sharply, lactic acid in blood increases and cannot be reused; and insulin deficiency is aggravated. Therefore, it is better to supplement glucose. In addition, it is advisable to eat more sugar-rich foods such as honey, rice, noodles and potatoes to supplement heat. 3.Eat more foods with anti-cancer effect, such as snapper, mushroom, black fungus, garlic, seaweed, mustard and royal jelly, etc. 4.Vitamins A and C have the function of stopping cell malignancy and proliferation and increasing the stability of epithelial cells. Vitamin C can also prevent the general symptoms of radiation damage, and can make the level of white blood cells rise; vitamin E can promote cell division and delay cell aging; vitamin B1 can promote patients’ appetite and reduce the symptoms caused by radiation therapy. Therefore, you should eat more foods rich in the above vitamins, such as fresh vegetables, fruits, sesame oil, cereals, beans and animal offal. 5. Patients with radiotherapy and chemotherapy are generally advised to eat cool food and cold drinks; however, patients with cold sensation are advised to eat hot food. Key words: breast cancer diet taboos (2)(6) diversify diet, pay attention to color, aroma, taste and shape to promote patients’ appetite; cooking food should be steamed, boiled and stewed more often, avoid indigestible food and prohibit drinking alcohol. For those who have difficulty in chewing, swallowing, digestion and absorption and lack of special nutrients after tumor surgery, different diets can be given according to the situation and the lack of nutrients can be supplemented. Breast cancer diet should be noted as follows: [Desirable] 1. It is advisable to eat more foods with anti-breast cancer effect, such as seahorse, horseshoe crab, cobra meat, sperm whale oil, toad meat, crab, red, clam, oyster, tortoiseshell meat, kelp, asparagus, and stone cauliflower. 2.It is advisable to eat more foods with immunity enhancement and relapse prevention, including mulberry, kiwi, asparagus, pumpkin, jujube, onion, leek, barley, beans, yam, shiitake mushroom, shrimp skin, crab, mackerel, prawns and snake. 3, swelling is appropriate to eat barley, loofah, adzuki beans, taro, grapes, lychee, water chestnut, carp, pond lice, shark, kelp, loach, yellow croaker, snail. 4. It is advisable to eat fennel, green onion, shrimp, sea dragon, smear oil whale, orange cake, cephalotaxus, grapefruit, horseshoe crab. Breast cancer diet note: [Avoid] 1. Avoid smoking, alcohol, coffee, cocoa. 2, avoid spicy pepper, ginger, cinnamon and other spicy stimulating food. Avoid fatty, fried, moldy and pickled food. 4, avoid rooster and other hairy things.