Low thyroid function can also lead to weight gain. It is suggested that on the basis of diet adjustment, you should strengthen aerobic exercise such as brisk walking, skipping rope and swimming, and check thyroid function regularly for reasonable treatment. If the cause of hypothyroidism is diagnosed through examination, such as the need for iodine supplementation, or the treatment of hypothyroidism with pure Chinese medicine. During this period, dietary adjuvant therapy is very important. The hypothyroidism diet should avoid eating goiter foods such as Chinese cabbage, Chinese cabbage, rape, cassava and walnut, limit the diet rich in fat and cholesterol, supplement the diet rich in iron, vitamin B 12, such as animal liver, and take multivitamins and folic acid when necessary.