(a) Iodine is needed by the thyroid gland for the production of thyroxin hormone.
(b) This harmone regulates the metabolism of fats, proteins and carbohydrates in our body.
(c) Deficiency of iodine leads to enlargement of thyroid gland.
(d) This deficiency is known as goitre. Thus consumption of iodised salt in day to day diet is essential.
