It is difficult to achieve the effect of replenishing white blood cells through dietary supplements during radiotherapy, and white blood cell boosting therapy is needed if necessary. Radiotherapy will also affect the normal cells of the patient and inhibit the normal function of the bone marrow, thus causing a decrease in hemoglobin, white blood cells, platelets, etc. If the decrease is only mild, it can be recovered naturally after the chemotherapy is finished. If the decrease is only mild, usually no special treatment is needed, and it can be recovered naturally after the chemotherapy is finished, and it is not effective to improve it through food, which can only help to replenish the body’s energy and nutrients. If the white blood cells are greatly reduced, it is necessary to carry out targeted white blood cell enhancement treatment under the guidance of the doctor, and the more commonly used method is to inject recombinant human granulocyte colony-stimulating factor, so as to make the white blood cell level rise.