Iodine is a catalyst for the enzymes, which manufacture T4 & T3 – a thyroid hormone. It is stored primarily in the thyroid. Thyroid hormones regulate body temperature, metabolic rate, cellular reproduction, growth, blood cell production, nerve and muscle function, and much more. A lack of Iodine can create goiter or enlargement of the thyroid gland. A malfunction of the thyroid (insufficient production of the thyroid hormone as measured by a blood test) is many times the result of toxic overload or heavy metal toxicity – especially Mercury.
Deficiency: Goiter, hypothyroidism