Montreal has voted to stop adding fluoride to tap water in six demerged West Island cities by 2025, a decision that has ignited backlash from local mayors and health experts. But, what exactly is fluoride? Do we really need it in our water? Dr. Joe Schwarcz, host of the Dr. Joe Show on CJAD 800 and Director of McGill University's Office for Science and Society, spoke with Andrew Carter.
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