After analyzing 98% of GP practices in England, the study found specifically that rates of hypothyroidism (an underactive thyroid) were 30% more likely in areas that fluoridated their water. In the study, it equated to approximately 15,000 needlessly suffering from the ailment.

As mentioned, hypothyroidism is an issue that affects millions – often without anyone knowing it. It's an issue that can lead to depression, weight gain, fatigue, aching muscles, weakness, and much more. While there are a number of causes of hypothyroidism, as well as numerous hypothyroidism natural treatments, this recent study suggests that limiting fluoride ingestion is one many should consider.

The study abstract's findings concluded:

"Findings We found that higher levels of fluoride in drinking water provide a useful contribution for predicting prevalence of hypothyroidism. We found that practices located in the West Midlands (a wholly fluoridated area) are nearly twice as likely to report high hypothyroidism prevalence in comparison to Greater Manchester (non-fluoridated area)"