Q.

Insufficient dietary iodine can cause –

A. Cretinism
B. Giant build
C. Enlarged thyroid
D. Small thyroid
Answer» C. Enlarged thyroid
Explanation: A severe iodine deficiency can cause hypothyroidism, and even developmental brain disorders and severe goiter. If there is not enough iodine in the diet, the thyroid will be unable to produce enough hormone. Thus, insufficient dietary iodine can cause the thyroid to grow unnaturally, due to the pituitary's continued high production of TSH in its attempt to raise thyroid hormone levels.
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