Should We Put Fluoride in Our Drinking Water? (Part 1)

Cities across the U.S. are battling over a question that hits close to home: what’s really in your tap water and what could it mean for kids? In Part 1, host Kari Beal goes on the road to investigate fluoride fears concerns, breaking down the latest science on thyroid markers, IQ findings, and why dosage matters, with a leading researcher explaining what we know (and what we still don’t).

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Studies:
Thyroid: https://pmc.ncbi.nlm.nih.gov/articles/PMC11003687/
IQ: https://ntp.niehs.nih.gov/research/assessments/noncancer/completed/fluoride
IQ: https://twin-cities.umn.edu/news-events/fluoride-drinking-water-does-not-harm-childrens-iq

00:00 Tap water question; why fluoride is controversial
00:00:37 Welcome + episode setup (broadcast story format)
00:01:21 Brevard, NC intro; notable choice: no fluoride in tap water
00:02:03 Parent/council member Maurice Jones shares child health concerns
00:02:26 Hypothyroidism explained; why fluoride studies worry some families
00:02:58 Expert interview: USC chemist Susan Richardson explains fluoride basics
00:03:24 Benefits at low levels; risks of too much (fluorosis)
00:03:48 EPA level (0.7 mg/L); thyroid review discusses higher exposures (~2.0 mg/L)
00:04:24 2025 IQ meta-analysis: higher levels (>1.5 mg/L) linked to small decrease; limits noted
00:05:09 “How much water?” Dose matters; bottled water as an option if concerned
00:05:36 Topical vs swallowed fluoride; toothpaste use in Jones’ family
00:06:11 What’s next: how removing fluoride affects dental health; providers decline due to politics
00:06:38 Host adds study context + new IQ study update; links mentioned
00:10:05 How to find your local water quality report + fluoride levels
00:11:07 Toothpaste backwash + kid toothpaste guidance; host’s personal note
00:12:22 Preview Part 2: higher-quality NC randomized study using toenail clippings

The Wellness Files is a health-focused podcast where we explore practical tools, research and real patient stories. We hope to inform, inspire, and connect to audiences so you can be the best version of yourself, while also asking tough questions about safety and effectiveness.