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Fluoride: What you need to know

Some places add fluoride to tap water to prevent tooth decay.

Fluoride has been in most American tap water for decades. It’s there to help to prevent tooth decay, especially in children. Scientists and health officials say it’s one of the biggest public health wins of the 20th century.

But lately, fluoride has found itself at the centre of a heated debate, with some people concerned about side effects. Robert F Kennedy Jr, the US Health Secretary, is one of those, but he has long expressed views that conflict with scientific evidence.

We break down the facts about fluoride, explain how the quantities of it in water is safe and tell you what you need to know with Phoebe Hopson, a ÃÛÑ¿´«Ã½ reporter, and Michelle Roberts, a doctor and health reporter.

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Presenter: Hannah Gelbart
Producers: Julia Ross-Roy and Emily Horler
Editor: Verity Wilde

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12 minutes

Last on

Wed 26 Mar 2025 03:50GMT

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  • Tue 25 Mar 2025 18:50GMT
  • Wed 26 Mar 2025 03:50GMT

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