“Iodine deficiency has been called the world’s major cause of preventable mental retardation.”
The thyroid gland uses tyrosine and the natural element iodine to make thyroxine (T4), a thyroid hormone containing four iodine atoms.
The other, much more biologically active thyroid hormone is tri-iodothyronine (T3),
which has three iodine atoms. Lack of dietary iodine has long been identified as the problem in diminished thyroid hormone synthesis. According to the International Council for the Control of Iodine Deficiency Disorders:
“Iodine deficiency has been called the world’s major cause of preventable mental retardation.
Its severity can vary from mild intellectual blunting to frank cretinism, a condition that includes gross mental retardation, deaf mutism, short stature, and various other defects… The damage to the developing brain results in individuals poorly equipped to fight disease, learn, work effectively, or reproduce satisfactorily.”
This crucial role of iodine is another reason why the thyroid gland is especially vulnerable today. Canadian researcher Andreas Schuld has documented more than 100 studies during the last 70 years that demonstrate adverse effects of fluoride on the thyroid gland.32 Schuld says:
“Fluorine, being the strongest in the group of halogens, will seriously interfere with iodine and iodine synthesis, forcing more urinary elimination of ingested iodine as fluoride ingestion or absorption increases.” by John MacArthur
Iodine is a halogen. The halogens are a series of non-metal elemants: Fluorine, F Chlorine, Cl Bromine, Br Iodine, I Astatine, At
The problem is that fluoride is a “bully.” Any time an atom of fluoride and an atom of any other halogen are in the same vicinity, the fluoride will displace the other halogen and take its place. – Dr. Terry Tennant, MD, MD(H), PSc.,D
This is universal, probably throughout time and most likely throughout the cosmos. We realise that dentists will see this as yet another threat to their constant claims of fluoridation’s safety, but to claim otherwise is to fly in the face of science. See also→Periodic Table of the Elements