Hypothyroidism (hypothyroidism) is a systemic endocrine disease caused by a decrease in the synthesis of thyroid hormones, or their insufficient biological effect, due to various causes. In dietary management, thyroid function can be improved and corrected by supplementing a certain amount of iodine for a longer period of time, avoiding the use of goitre-causing substances and ensuring protein supply. Iodine is the raw material for synthesizing thyroxine. Iodine deficiency can lead to insufficient secretion of T3 (triiodothyronine) and T4 (tetraiodothyronine), which can cause an increase in secretion of thyroid stimulating hormone to induce the thyroid gland to secrete more T3 and T4, resulting in hypertrophy of the thyroid gland and clinical symptoms of hypothyroidism. In iodine-deficient areas, iodine deficiency exists in both goiter patients and residents without goiter, and goiter is merely a compensatory manifestation of iodine deficiency. The average daily safe amount of iodine for a normal adult is 150 μg, but the lack of iodine resources in the natural environment, insufficient iodine intake due to dietary structure, and the limited iodine storage capacity of the human body cause iodine deficiency in the body and lead to hypothyroidism. In the diet of hypothyroidism patients, foods with high iodine content should be used. Foods of marine origin are organic foods naturally rich in iodine, with seafood being the highest, such as kelp, nori and sea fish. Table salt as a carrier of iodine supplementation is really effective in eliminating goitre. Currently, iodized salt is the simplest and most practical way to supplement iodine for all people. However, iodine has the characteristic of volatility when exposed to heat, therefore, iodized salt should not be exposed to sunlight; nor should iodized salt be put in too early when cooking. Gu Chao, Department of Encephalopathy, Longhua Hospital, Shanghai, China 2. Be careful with foods such as cassava and walnuts that cause goiter in iodine-deficient areas. In some plant foods, such as cabbage, kale, cauliflower and other cruciferous plants, as well as spinach, radish, strawberries, peaches, soybeans and peanuts, there are also goiter-causing substances. These goiter-causing substances can affect the synthesis of thyroid hormones and cause temporary hypothyroidism, and heating the above-mentioned foods can destroy these substances, so such foods must be cooked before eating. 3, supply the right amount of calories and proteins Hypothyroidism patients have low basal metabolic rate and reduced caloric consumption, therefore, the caloric intake in the diet should not be too high, otherwise, it will easily lead to obesity. Under the condition of protein malnutrition, there is a tendency of low thyroid function. At this time, the renewal rate of small intestinal mucosa slows down, digestive juice secreting glands are affected, enzyme activity decreases, and albumin also decreases. Therefore, the diet should be supplemented with protein in time to improve the condition. The protein supply of hypothyroidism patients should be at least 1 g/kg of body weight, and food such as eggs, dairy, meat, fish and beans can be used. 4. Limit fat and cholesterol In hypothyroidism, the degree of increase in blood lipids is positively correlated with serum thyroid stimulating hormone level. Patients with hypothyroidism often have hyperlipidemia, so the fat intake in the diet is controlled at about 20% of the total caloric energy, and the use of high-fat foods such as cooking oil and pancetta is limited. In hypothyroidism, plasma cholesterol synthesis and discharge is slower, plasma cholesterol concentration is higher, triglycerides and β-lipoprotein are increased, so you should limit the food rich in cholesterol, such as animal offal, egg yolk, cream, etc. 5, supplement rich in vitamins and dietary fiber rich in vitamins to regulate the physiological functions of the body has a positive role, therefore, must supply sufficient, especially the B vitamins. To correct constipation, dietary fiber supply in the diet should be sufficient. Coarse grains, fresh vegetables and fruits are rich in vitamins and dietary fiber and can be used as much as possible. Typical manifestations of adult hypothyroidism include: chills and sweating, low body temperature, weakness and drowsiness, little speech, anemic appearance, swelling, dry skin, and memory loss. In severe cases, mental disorders, lethargy, bradycardia, low blood pressure, loss of appetite, abdominal distension, constipation, lack of stomach acid, loss of libido, impotence in men, excessive menstruation in women, and amenorrhea after prolonged illness. Chinese medicine can be divided into the following types. 1, spleen and kidney Yang deficiency type: the main manifestations are fatigue and weakness, cold, drowsiness, less speech, facial swelling, sparse pubic hair, tinnitus and dizziness, joint pain, impotence and spermatorrhea, amenorrhea in women, pale tongue with white fur, thin and weak pulse. The treatment should be to warm the spleen and kidney, and can be used as follows: roast mutton with two immortals: 15g Xian Mao, 15g Xian Ling Spleen, 15g ginger, 250g mutton, and appropriate amount of seasonings. Sliced lamb, put in a casserole, add water, and then wrapped in gauze, Xianmao, Xianling spleen, ginger, put into the pot, boil over moderate heat until the lamb is cooked, add seasonings to taste. Remove the medicine package, eat meat and drink soup, 1 dose daily. Stir-fried lamb with onion: 200g of lamb, 100g of onion, seasoning appropriate amount of each. Wash and shred mutton, heat oil in a frying pan, put in chili pepper and fry, then put in mutton, ginger and onion, add salt, wine, monosodium glutamate and vinegar, boil until cooked and juice is ready, 1 dose daily. Smoked chub with lotus fragrance: 500g chub meat, 3g cardamom, 3 fresh lotus leaves, 150g pig net oil, 25g tea leaves, 60g rice, appropriate amount of seasonings. Wash the chub meat, cut into 12 rectangular pieces; wash and chop the ginger; wash the fresh lotus leaves, soften them in boiling water, then put them in cold water to rinse and cool, and cut them into 12 pieces; wash and cut the pig net oil into 12 pieces; grind the cardamom seeds into fine powder. Marinate the fish with soy sauce, yellow wine, salt, cardamom powder, monosodium glutamate, grated ginger and pepper for 30 minutes, then wrap a piece of fish with a piece of pork net oil and wrap it with a lotus leaf outside; put rice, tea leaves, sugar and water in a pot with a grate on top for 500mL, put the wrapped fish on the grate, boil it over low heat until the water dries up, remove from the heat after the rice, sugar and tea leaves smoke and fumigate for 10 minutes, take out the fish and put it on a plate. Place on a plate. 1 dose daily. 2.Qi and blood deficiency type: mainly manifested as fatigue, lazy speech, pale face, insomnia, forgetfulness, abdominal distension, panic and palpitations, dry skin, pale tongue with little coating, thin and weak pulse. When the treatment is to nourish Qi and blood, can be used: double winter braised rape: water hair mushroom 50g, net asparagus 50g, rape 300g, seasoning each appropriate amount. Wash rape, slice horizontally from the middle, then cut into 3cm-long, 10cm-wide slices; remove impurities and wash mushrooms, cut in half and set aside. Blanch the greens in a pot of boiling water; fry the mushrooms in a frying pan and remove when they rise to the surface. Add the mushrooms, soy sauce, soy sauce, sugar, mushrooms and greens, add MSG, bean sprout soup, thicken with wet starch and drizzle with sesame oil. 1 dose daily. Double winter roast gluten: 150g gluten, 15g dried mushrooms, 50g net asparagus, appropriate amount of seasonings. Cut gluten into pieces, cut asparagus into thin slices; wash mushrooms with boiling water, remove the stems and cut into slices. Add soy sauce, sugar, MSG, and slightly add water or soup and cook together until tasty. 1 dose daily. Gui Yuan Chicken: Gui Yuan 100g, 1 kid chicken, seasoning appropriate amount. Remove the hair of the chicken, wash it, put it in a pot of boiling water and boil it; select and wash the meat, put it in the belly of the chicken, add onion, ginger, pepper, salt and monosodium glutamate, put it in a bowl, steam it in a cage for about 1 hour, take out the onion and ginger and it is ready, 2 doses per week. 3.Yang deficiency water flooding type: the main manifestations are fear of cold, drowsiness and laziness, weight gain, swelling of the limbs, joint ankylosis, palpitations, chest tightness, slow reaction, abdominal distension and less food, light fat tongue or teeth marks, white smooth coating, sunken and weak pulse. When the warmth of Yang and water for treatment, can be used: yam Poria package: yam powder 100g, Poria powder 100g, flour 200g, bean paste filling 200g, baking powder appropriate amount. Yam powder, Poria powder with water into a paste, steam for half an hour on the cage, transfer into the flour, baking powder, pull the agent, rolled into a skin, wrapped in bean paste filling, wrapped into buns, steamed on the cage that is. 1 dose daily. Dog meat congee: 500g of dog meat, 50g of rice, seasoning appropriate amount. First, wash the dog meat, cut it finely, put it into a pot, add water to boil, remove the froth, add rice, cook until the porridge is ready, season with salt, monosodium glutamate, onion, ginger, pepper, cooking wine, etc., and then boil for one or two times to take, 1 dose daily. Sea dog kidney soup: Sea dog kidney 10g, sea cucumber 50g, fish maw 30g, seasoning appropriate amount. First, the dog kidney, sea cucumber, fish maw hair, wash, cut slices; put the amount of vegetable oil in the pot after heating, the onion, ginger burnt, and then the dog kidney, sea cucumber, fish maw stir-fry, add chicken broth and onion, ginger, pepper, wine, etc., stir-fry until cooked, wet starch thickening, salt, monosodium glutamate seasoning, 1 dose daily.