Thyroid cancer accounts for 1% of all tumors, and its incidence has been on the rise in recent years. Differentiated thyroid cancer can be classified into differentiated and undifferentiated types, and differentiated thyroid cancer can be classified into papillary thyroid cancer and follicular thyroid cancer, which together account for more than 90% of all thyroid cancers; medullary thyroid cancer accounts for about 5%, and undifferentiated thyroid cancer accounts for only 3%. After surgery, almost 90% of thyroid cancer can survive for a long time, especially the early cure rate is high. 1. The diet should ensure adequate supply of protein, generally the daily protein intake should reach more than 1.5 grams of body weight, and it should be mainly high-quality protein, such as eggs, milk, meat, soy products, etc. 2, diet structure to low fat, moderate carbohydrates, pay attention to supplement vitamins, inorganic salts, fiber, etc., eat more fresh vegetables and fruits. Pay attention to cooking methods, so that dishes with color, aroma and taste, to enhance appetite. A small number of meals, coarse and fine match. 3, it is advisable to eat more food with high iodine content, such as seaweed, seaweed, hairy vegetables, light vegetables, dried shellfish, razor clams, jellyfish, sea cucumber, lobster, mackerel, mackerel, fish maw, ark, clam, turtle. 4, it is appropriate to eat more almonds, fungus, persimmon cake, asparagus, barley, turtle, walnuts, mushrooms, mushrooms, dates and other foods to enhance immunity; 5, can also eat more poria, yam, figs, cicely, radish, rhizome, apricot, konjac, taro, rape, mustard, kiwi and beef, lamb, venison; 6, moderate intake of walnuts, black soybeans, yams, leeks, lychees, mulberries, mackerel, shrimp, pig and lamb kidney, bird meat The food should not be eaten, such as quail eggs, pomegranate, plums, lentils, etc. Avoid smoking, alcohol and spicy stimulating food, such as onion, garlic, pepper, chili, cinnamon, ginger, etc.; avoid fatty, sticky, hard and indigestible food.