Chemotherapy and radiotherapy are important means of treating cancer, but while killing cancer cells, they will also damage other normal cells, leading to adverse reactions and affecting patients’ quality of life. If some attention can be paid to diet, it may help patients adapt to the treatment better. The following are suggestions on diet: 1. Improve appetite During chemotherapy, patients need more nutrition, but some chemotherapeutic drugs will make people lose their appetite. You can drink some yogurt, vegetable soup, and patients without diabetes can eat some sweets in moderation, such as eating bread with some peanut butter or other jams. These methods may improve appetite. 2, food more delicious Chemotherapy will damage the taste buds, so that people subjectively feel that the food tastes bad, and even plain water is difficult to swallow. At this time, you can make the food more delicious, such as adding some lemon to plain water. If you do not like lean meat, you can eat more eggs, fish, skim milk and so on to supplement protein. 3, relieve mouth ulcers During chemotherapy, immunity will be reduced, some patients will have mouth ulcers. If you want to promote the healing of mouth ulcers, you should avoid drinking alcohol, eating spicy, too hot stimulating food. Drinking more water and gargling with lightly salted water will also help the ulcers heal. 4, how to reduce nausea Ginger candies, mints or ginger tea can help reduce nausea. Eating slightly cooler foods can reduce nausea than hot foods. In addition to avoiding greasy or fried food, 5, eat small meals during chemotherapy, eat small meals is more conducive to the absorption of food nutrients, and can reduce the symptoms of nausea and vomiting. 6, improve constipation drink more water is a good way to fight constipation. Eat more vegetables and fruits with high fiber, and at the same time, do some exercise, such as walking and so on, to promote gastrointestinal motility, improve constipation. 7, against diarrhea When diarrhea occurs, eat less or not eat greasy food or fried products. At the same time, to drink less coffee, sugary drinks, mixed drinks, fruit juice, etc., a variety of salads, raw food should also eat less. You can drink more porridge, eat more potatoes, pumpkin and so on. 8, avoid dehydration Diarrhea and vomiting caused by chemotherapy may lead to dehydration. Mild dehydration may occur when the following conditions occur: dry mouth or feeling sticky in the mouth, sunken eye sockets, low or dark-colored urine, reduced tears. The easiest way to avoid dehydration is to drink plenty of water, rather than waiting until you are thirsty. 9, quit drinking During chemotherapy, the liver bears the burden of metabolizing chemotherapy drugs and reducing drug toxicity. Drinking alcohol will put an extra burden on the liver and reduce the efficiency of the liver’s work. At the same time, drinking alcohol will also aggravate nausea, vomiting and other gastrointestinal reactions. Some chemotherapeutic drugs may react with alcohol and bring incalculable damage. 10, careful use of supplements Experts recommend that during chemotherapy do not eat a variety of vitamins, minerals, dietary fiber supplements. They may react with chemotherapy drugs and affect their efficacy. If you are taking any supplements, be sure to communicate with your doctor first. 11.Consult the doctor in charge before eating soy products Since some tumors are hormone sensitive, eating soy products may have an effect on the tumor. Therefore, you should consult your oncologist before eating soy products or avoid soy products.