Patients with hypothyroidism often have swollen hands and feet and fat bodies due to mucinous edema, and salty foods can cause water and sodium retention and aggravate edema. Although hypothyroid patients are not as strictly required to limit salt intake as kidney disease patients, they should also eat less salty foods such as pickled pickles. According to Chinese medicine, various foods have the nature of cold and warm, such as the well-known eating more spicy easily on fire, eating more cold drinks will easily hurt the stomach. Chinese medicine believes that Yang Qi has the role of warming the body and promoting the operation of Qi and blood, Yang deficiency is cold. Patients with hypothyroidism are afraid of cold, like heat, weakness, mostly belong to the Chinese medicine Yang deficiency, suitable to eat warm tonic. In the meat food, mutton, dog meat, venison, beef, etc. are warm and nourishing, suitable for hypothyroidism patients in winter. From the perspective of modern medicine, when protein intake is insufficient, there is a tendency for the thyroid function to be low. Among the vegetables, leek and yam can warm the yang and strengthen the spleen, and among the melons and fruits, pecan meat can nourish the kidneys and warm the yang, which are suitable for hypothyroid patients. However, cold and cold products such as cold drinks, bitter melon, watermelon, chrysanthemum tea, etc. should be eaten sparingly. Iodine is the raw material for the manufacture of thyroid hormones, and seafood is rich in iodine. Hypothyroidism patients with insufficient thyroid hormone, eat more seafood can promote the synthesis of thyroid hormone, there are soft and loose effect, to inhibit the enlargement of the thyroid gland and nodules. Therefore, patients with hypothyroidism should eat seafood such as sea cucumber, shrimp, oysters, kelp and seaweed. However, crab is cold in nature and should not be eaten in large quantities. We usually eat crab with minced ginger to avoid its cold nature. As the gastrointestinal function of hypothyroidism patients is weakened, they are prone to indigestion and abdominal distension, so it is best to eat seafood steamed, not only to keep the taste fresh, but also to avoid grease and reduce the burden on the stomach and intestines. Patients with hypothyroidism have reduced heat production and poor immunity and resistance, so they are more susceptible to cold and flu than the average person, so they should pay more attention to cold and warmth. The human body must adapt to the changes of yin and yang in the four seasons in order to maintain a harmonious balance with the natural world. Winter is the season when everything in the natural world closes up, and people’s yang energy must also be hidden inside. Patients with hypothyroidism should not go out in the early morning and evening because they lack thyroxine and their body temperature is low. Moreover, the air quality in the early morning is the worst time of the day. For middle-aged and elderly people who have the habit of waking up early to exercise, they should try to postpone the early exercise time to avoid getting cold. Activity exercise can make the meridians smooth, qi and blood flow, enhance the resistance and heat production of patients with hypothyroidism, but we should pay attention to prevent the exercise is too strenuous, excessive exercise is not only unhealthy, but also may induce cardiovascular disease in the elderly. Exercise methods such as hand shaking, back pounding, walking and tai chi are very suitable for middle-aged and elderly patients with hypothyroidism.