Chemotherapy and radiotherapy are the most common and effective means of fighting cancer. Chemotherapy and radiotherapy have many side effects and can easily cause various physical discomforts to patients. What can patients and their family members do in terms of daily meals? What kind of ingredients are better to eat? Firstly, due to the toxic side effects of chemotherapy, patients often have the following conditions in their body, what should they do for a reasonable diet? 1, leukopenia, fatigue: recommended ingredients are: yam, mushrooms, red dates, white lentils, longan, lychee, peanuts, pig liver, turtle, pig cavity bone, black fungus, black beans, beef marrow, oxtail and other foods. These ingredients often have the effect of strengthening the spleen and kidney, strengthening the essence and filling the marrow, and assisting in raising the blood picture. 2, anorexia, nausea, digestive tract adverse reactions: recommended ingredients are: lotus root powder, ginger, citrus, peel, white radish, charred hawthorn, barley, white lentils, yam, duck gizzard, etc. These foods have the effect of strengthening the spleen and stomach, lowering the rebellion and stopping vomiting, which can relieve the patient’s discomfort to some extent. 3, panic and shortness of breath, heart damage: the recommended ingredients are maitake, wanyin, bean seedlings, lily, red dates, wolfberry, maitake, red beans, etc.. These foods benefit the heart and blood, invigorate the blood and remove blood stasis, which can improve the symptoms associated with heart muscle damage. 4. Liver discomfort, abdominal distension, liver damage, elevated transaminases and jaundice index: recommended ingredients: winter melon skin, wolfberry, chrysanthemum, water chestnut, loofah, tomato, celery, pumpkin, etc. Secondly, what should cancer patients pay attention to in their diet during radiotherapy? Most patients will have dry mouth and throat, cough, sore throat, ulcer, fever and constipation during radiotherapy, which mostly belong to heat toxicity and fluid deficiency. It is recommended to eat foods that clear heat and detoxify the body and nourish yin and generate fluids. For example: fishy grass, winter melon, lily of the valley, wolfberry, maitake, lotus root powder, yams, red dates, etc. Dry mouth and throat mouth daily drinking watermelon juice, pear juice, or mung bean soup, sugar cane juice, constipation can take some honey, hawthorn juice, sesame, etc. daily.