Iodine

Iodine is essential for the production of thyroid hormones, which are required for growth and development, and maintaining normal metabolic function. Iodine intake in many New Zealanders is less than adequate and iodine deficiency can result in goiter, a swelling of the thyroid gland, which is, situated in the throat. Large goiters can be particularly problematic, because it can block the throat, and damage the laryngeal nerves. Iodine deficiency can also lead to mental retardation. The RDI (recommended daily intake) for iodine for people aged 14 years and over, is 150µg/day. Iodine can be found in milk, eggs, fish, seafood, seaweed and seaweed products (sea meal, sushi and alginates) and iodised salt. You can also get iodine tablets, however, only take them if your doctor or dietitian prescribes them to you.

Iodine contents of common foods