Continuous high intake of kelp and other foods rich in iodine may affect thyroid function. Although some people believe that high intake of soy products or cruciferous vegetables such as broccoli and cabbage leads to goiter enlargement and affects thyroid function, in reality these foods cause no harm unless a considerably quantities are consumed daily for long periods of time. Overall, patients should try to eat a balanced diet.
Thyroid hormone levels may temporarily change or gradually decrease even when patients are receiving treatment. Regular blood tests may be required to adjust the dosage of oral medication. Even if the dosage remains constant, a patient should have hospital check-ups for follow-up every six months. If the goiter enlarges or the body’s condition changes, a patient should schedule an appointment and not wait six months for a regular check-up.