Study Finds Association Between Fluoride And Underactive Thyroid.

a study performed in England found an association between fluoride in drinking water and increased rates of underactive thyroid. The team found that in locations where fluoride levels were greater than 0.3mg/L, there was a 30 percent increase in the risk of under active thyroid. Dr. Edmond Hewlett, ADA spokesman and a professor at the UCLA School of Dentistry, argued against the claims posed by the research group and stressed that, “currently, the best available scientific evidence indicates that optimally fluoridated water does not have an adverse effect on the thyroid gland or its function.” http://consumer.healthday.com/general-health-information-16/thyroid-news-659/fluoride-in-drinking-water-tied-to-higher-rates-of-underactive-thyroid-696704.html