What diseases can be caused by excessive iodine intake?

Excessive iodine intake may lead to thyroid diseases and even exacerbate hyperthyroidism. Excessive iodine stimulates the thyroid gland to overproduce thyroid hormones, which may lead to other autoimmune thyroid diseases. Appropriate iodine intake can regulate the central nervous system, bones, energy metabolism, etc. Therefore, it is essential to control the amount of iodine consumed in daily life to avoid discomfort caused by excessive intake.

1. Thyroid diseases are the most common health issues associated with excessive iodine intake. Excessive iodine stimulates the thyroid gland to absorb large amounts of iodine and overproduce thyroid hormones.

2. One of the most common manifestations is hyperthyroidism, which includes symptoms such as heat intolerance, excessive sweating, palpitations, tachycardia, increased bowel movements, and weight loss.

3. However, some cases of excessive iodine intake may also lead to other autoimmune thyroid diseases, such as Hashimoto's thyroiditis and subacute thyroiditis.

4. If patients with pre-existing hyperthyroidism consume iodine-rich foods or undergo iodine-based contrast imaging exams, it may lead to the recurrence or exacerbation of their condition.

1. The primary function of iodine is achieved through its participation in thyroid hormone synthesis, and its physiological effects are manifested as the physiological effects of thyroid hormones.

2. The first function is the regulation of growth and development, primarily in the central nervous system.

3. The second function is related to bone health.

4. The third function is the regulation of energy metabolism balance.