Updated August 6, 2023
This information is for educational purposes only, to facilitate quality conversations between patients and their personal physician(s). Several additional considerations are required to safely administer any protocol for an individual. This information is NOT intended to diagnose, treat or encourage self-treatment of any medical condition.
Iodine is the largest atom in the human body. It has unique features that power multiple functions, not just thyroid. While the thyroid system utilizes a large proportion of the body’s total iodine, the following tissues require iodine and cannot function properly without it: salivary glands, breast and prostate, stomach (secreted into the stomach during digestion), other locations in the gut, choroid plexus in the brain (which lines the mysterious fluid-filled ventricles), and other places. Every cell of the body is supplied with iodine when levothyronine (T4) is converted to liothyronine (T3), T2, and probably T1, releasing Iodide ions.
The World Health Organization’s position is that “iodine is the leading cause of reversible brain dysfunction in children”. Pre-natal or post-natal iodine or thyroid deficiency can cause problems with brain development, some of which is irreversible. Adult brain and optimal health require proper amounts of iodine while reducing the toxic effects of halide competitors bromine, chlorine (perchlorates) and fluorine.
Comparing Chloride with Iodide
Salt or sodium chloride has a maximum solubility in water of about 35%, while sodium iodide’s solubility at the same temperature is approximately 130%. This demonstrates that iodide has a much greater affinity for water than chloride, 3.7 x more when attached to sodium. For the potassium forms, both have higher solubilities than the sodium form. Solubility of potassium chloride is 75% while potassium iodide is 166%, or 2.2x more.
This affinity of iodide for water gives iodide some of its special features in influencing cellular biochemistry. In the iodine (I2) form, the affinity reverses, the molecule having high affiity for fatty molecules (see iodine number) and extremely low for water. In some ways, iodine can act as a “counter-agent”, by shifting between two opposite sides of the water-fat system.
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