It has been considered that local authorities from across the United Kingdom should add fluoride to water supplies, following new research that confirms it has no negative effects.

The extensive research carried out by the National Toxicology Program in the US where 80% of water is fluoridated, states that following years of analysis, there is “no link between elevated levels of fluoride and cognitive learning deficits.”

Fluoride is a naturally occurring mineral that helps oral health by strengthening the tooth enamel, making it more resistant to tooth decay. It is found in many foods and in all drinking water but usually at levels too low to be beneficial to a person’s oral health.