Although iodine is an essential substance for human body, if the iodine content in the body is too high, it will cause hyperthyroidism and other diseases, so we should pay attention to iodine intake. Foods with low iodine content include lean meat, chicken, duck, turtle, turtle shell, jellyfish, shrimp, eggs, freshwater fish, tremella, mushrooms, mussels, bird's nest, pears, apples, oranges, bananas, mangoes, papaya, peas, Pleurotus ostreatus, celery, purple cabbage, cabbage, kohlrabi, cabbage, spinach and cabbage.