Fluorine deficiency

Fluoride or fluorine deficiency is a medical condition in which a human, or other organism lacks the necessary compounds containing fluorine to keep bones and teeth healthy. The extent to which the condition truly exists, and its relationship to fluoride poisoning has arisen some controversy.

Fluoride is considered essential in the development and maintenance of teeth by the American Dental Hygiene Association. The systemic effects of fluoride were first seen in 1931 when fluoride in high concentrations was found to stain teeth and prevent tooth decay.

Excessive fluoride has been scientifically linked to death, brain damage, hypothyroidism, cancer, liver damage, kidney function, and fluorosis in children. Consequently, anti-fluoridation groups argue that there is no need to risk communities with fluoride.