The City of Calgary is reintroducing fluoride back into its drinking water, saying it helps prevent tooth decay. The city had removed the mineral from its water system in 2011.
Effective June 30, fluoride levels will be maintained at “optimal” concentrations of 0.7 milligrams per litre, according to Health Canada‘s guidelines, the city says on its website, noting that the mineral is “naturally found in water, air, soil and almost all foods” in lower levels.
In a city-wide plebiscite in the 2021 civic general election, 62 percent of Calgary residents voted in favour of fluoridation in the drinking water system. Four years later, the city is implementing the refluoridation, stating that it’s a “safe and effective public health measure to prevent dental cavities and improve oral health.”…