Name the disease which occurs in adults due to the deficiency of iodine in the diet.
What is the main symptom of this disease?

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Solution

Answer:
Deficiency of iodine results in a disease condition called goitre and swollen neck is its main symptom.

Swollen neck is due to the increase in the size of the thyroid gland to increase the production of thyroxine hormone.

Iodine is necessary for the production of the thyroxine hormone by the thyroid glands.

Thyroxine regulates carbohydrate, fat and protein metabolism and controls the growth of the body.

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