By Mallika Marshall, MD; April 14, 2025 / 2:10 PM EDT / CBS New York
Local News
Is fluoride in water bad for you? Some top questions, answered
By Mallika Marshall, MD; April 14, 2025 / 2:10 PM EDT / CBS New York
There have been a lot of questions about fluoride since the Health and Human Services Secretary Robert F. Kennedy called for it to be removed from the water supply. But is fluoride actually good or bad for you? Dr. Mallika Marshall answers common questions about fluoride.
What is fluoride?
Fluoride is a mineral that occurs naturally in many foods and water.
Dentists and healthcare providers have been promoting the use of fluoride to help strengthen teeth and reduce the risk of cavities for years. That’s because it makes your tooth enamel more resistant to acids and can also help reverse early decay by remineralizing the enamel.
Now, most toothpastes and mouthwashes contain a minimal amount of fluoride. There are fluoride treatments available from most dentists, where they apply it directly to your teeth.
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