The iodine is an important element for the normal functioning of the thyroid gland. The human system has no capacity to produce iodine naturally that is why it is important to take iodine in our diet. The Iodine can be found in many foods. When there is lack of iodine in our bodyhe production of thyroid hormone can never be met. Swelling of the thyroid gland will be noticeable with iodine deficiency, mental retardation and hypothyroidism can be brought by a pregnancy that is lacking iodine, that is why the health of the mother is very important. Take your iodine supplements regularly.