If high thyroid hormone level in pregnancy is considered to be caused by hyperthyroidism, avoid eating high iodine food and ensure sufficient nutrition. If high thyroid hormone level in pregnancy is considered to be due to hyperthyroidism, it is necessary to consult a doctor in time, complete the relevant examination and timely treatment, such as propylthiouracil and other antithyroid medication, and regular rechecks. Diet should avoid iodine-rich foods, such as kelp, seafood, seaweed, iodized salt and so on. In addition, pregnant women should avoid drinks such as coffee and strong tea, and avoid oily and stimulating foods. Attention should be paid to ensuring adequate, balanced and comprehensive nutrition for both the pregnant mother and the fetus, balancing the diet and controlling weight gain. If thyroid hormone is high in pregnancy, it is recommended to go to the hospital for consultation, and consult your physician or dietitian for specific dietary combinations.