A recent study out of England has found a link between the amount of fluoride in public drinking water and a rise in incidence of hypothyroidism (underactive thyroid). The study, published in the Journal of Epidemiology & Community Health, compared 2012 national data on levels of fluoride in drinking water to trends for hypothyroidism as diagnosed by family physicians across England.
The thyroid is a butterfly-shaped gland near the base of the neck that produces hormones. Thyroid hormones control the rate of many body activities, including how fast calories are burned and how fast the heart beats. If the thyroid gland isn’t active enough, it does not make enough thyroid hormone to meet the body’s needs.
The research found that in areas where tap water fluoride levels exceeded 0.3 milligrams per liter, the risk for having an underactive thyroid rose by 30%. The study, led by Stephen Peckham of the University of Kent in Canterbury, England found that hypothyroidism rates were nearly double in urbanized regions that had fluoridated tap water, compared with regions that did not. Continue reading “Fluoride Study Linked to Thyroid Problems”Read More