A healthy diet is needed for your body to function well. A healthy diet is especially important if you have a tumor. By maintaining a healthy diet, you will be able to undergo treatment successfully and maintain physical fitness, prevent tissue breakdown, rebuild body tissues and have resistance to infection. Those who eat well are better able to overcome the side effects of treatment and can even tolerate larger doses of medication. In fact, some oncology treatments work better in patients who are well-nourished and get enough calories and protein. As a special tip, don’t be afraid to try new foods. Some foods that you did not like before the disease may be liked during treatment. I. Nutritional principles during treatment 1. Rational choice of staple food varieties The variety of staple foods should be richer. It is recommended to consume complete cereals and try to avoid finely processed and over-processed foods. Recommended rice, whole wheat, oats, corn, purple rice and other grains and cereals, these foods contain carbohydrates will be slowly released, very conducive to the stability of the body’s hormone levels, especially insulin; at the same time coarse processed cereals contain a large number of vitamins that are beneficial to the body. Avoid or eat less refined sugar because tumor patients themselves have more or less insulin resistance, which leads to hyperglycemia, especially in middle and late stage tumor patients. At the same time, it is recommended to have reasonable meal rationing, such as consuming rice mixed with beans, which can provide carbohydrates and at the same time provide more quality protein. 2, the nutrition ratio of vegetables and fruits recommended daily consumption of more than 500 grams of vegetables: the main push cruciferous vegetables: cabbage: cabbage, cabbage heart, cabbage, purple cabbage shoots, red cabbage shoots, etc. Kale: cauliflower, cauliflower, kale, broccoli, bulb kale, broccoli, etc. Mustard category: leaf mustard, stem mustard (head lettuce), root mustard (big head lettuce), squash, etc. Radishes: especially carrots. There are also mushrooms, shiitake mushrooms and other mushrooms. Recommended daily consumption of more than 300 grams of fruit: including apples, pears, kiwi, oranges, berries (strawberries, blackberries, blueberries, etc.). These vegetables and fruits not only contain a lot of vitamins C and E, but also a lot of phytochemicals, including carotenoids, anthocyanins, bioflavonoids, lutein, lycopene, phytoestrogens, curcumin, etc. These are very good antioxidants that can fight the large number of free radicals we have to be exposed to every day, while stabilizing the body’s hormone levels. In fact, every day our body is in the game between oxygen free radicals and antioxidants, and this is especially true for tumor patients. 3. Nutritional and safety selection of fats and oils It is recommended to consume foods rich in monounsaturated fatty acids, n-3 polyunsaturated fatty acids and n-6 polyunsaturated fatty acids, which can antioxidant, maintain normal cell membrane function and maintain inflammation balance. These foods are mainly derived from seeds and fish. Daily consumption of seeds is therefore recommended and has been shown to be very helpful in replenishing the above-mentioned essential fatty acids, minerals, vitamin E, etc. to promote health. This is done by choosing an airtight jar filled with half flax seeds and half sesame, sunflower and pumpkin seeds, protected from light and heat, and eating one tablespoon per day, adding it to a soymilk machine or grinding it up and crushing it into porridge, as well as eating it directly. It is recommended to use olive oil intermittently for cooking. Recommend 3 meals of fish per week, deep sea fish can also be eaten, such as salmon, sardines, tuna, etc. If possible, you can supplement fish oil capsules directly. Reduce the intake of saturated fats, i.e. animal fats. Limit the consumption of pickled, smoked, fried, grilled and kimchi foods. It is recommended to maintain a healthy weight and maintain moderate exercise, at least 30 minutes of jogging or walking daily if physical strength allows. Small fluctuations in weight are normal during treatment, but the overall trend should remain stable. If weight loss persists, be sure to consult a clinician or dietitian. If you are unable to do any of the above during your illness, do not worry. A dietitian will be able to help you if you need it. Sometimes it is necessary to vary your diet to get the extra fluids, protein and calories you need. Talk to your doctor, nurse and dietitian about any problems you are having. 2.Adding meals as needed during treatment 1.Why do I need to add meals? During oncology treatment, the body often needs extra calories and protein to help maintain weight and recover as soon as possible. If you lose weight, adding meals will help you meet your extra calorie and protein needs, increase your strength, improve your energy level, and make you feel better. You may have to rely on extra meals to meet your needs during treatment, even if the extra food is not a very healthy source of calories. Keep in mind that this is temporary and you can return to a healthy eating pattern once the side effects wear off. To make it easier to add meals to your daily diet, try the following: 2. Tips for adding meals Eat small snacks at all times of the day. Stock up on a variety of protein-rich snacks for easy consumption. If you have diarrhea, avoid raw fruits and vegetables. If you have dry mouth, do not eat dry, hard or coarse snacks. If you can eat normally and maintain your weight without the need for extra meals, you don’t have to think about this. Third, the trick to increase calories and protein In addition to the normal three meals, often consume several additional meals. You can eat your favorite foods whenever you want. Eat at short intervals and don’t wait until you feel hungry. Put the largest portion of your meal when you are most hungry, for example, if you are most hungry in the morning, eat the most for breakfast. Try to eat high-calorie, high-protein foods at every meal and extra meals. Be moderately active or take a walk before a meal to promote appetite. Drink high-calorie, high-protein beverages such as canned liquid supplements. Replenish fluids between meals rather than at meals; drinking water at meals can make you feel too full. Try homemade or commercially produced nutritious meals. Fourth, moderate physical activity Physical activity has many benefits. It helps maintain both muscle mass, strength, stamina and bone strength. It also helps to reduce depression, stress, weakness, nausea and constipation. It also promotes appetite. So, if you haven’t started exercising, talk to your physician to determine a goal of at least 150 minutes of moderate activity, such as a weekly walk. If your doctor agrees, start with 5 to 10 minutes a day and work up to the 150-minute goal if you are able. Feel your body well and take breaks as soon as you need them; now is not the time to force yourself to exercise. Exercise needs to be done when your body is in the right condition.