Patients with thyroid nodules can eat watermelon in small or moderate amounts. Watermelon is a common fruit, which contains vitamin A, vitamin C, carotene, potassium, phosphorus and other nutrients, which can replenish nutrients and energy for the human body, so patients with thyroid nodules can eat watermelon appropriately, which can help the health. It should be noted that patients with thyroid nodules associated with hyperthyroidism need to avoid eating high iodine foods, such as seafood, kelp and so on. Watermelon generally does not contain iodine and can be eaten in small or moderate amounts, but it is not recommended to eat a large amount of watermelon all of a sudden, so as not to aggravate the burden on the gastrointestinal tract. If you are diagnosed with thyroid nodules and are not sure about the dietary precautions, you can consult your doctor.