Water Fluoridation Study Finds No Evidence of Cognitive Harm

New PNAS study using Wisconsin cohort data finds no negative association between community water fluoridation and adolescent IQ or cognitive performance across the life course.

By
Kerri Miller
April 23, 2026
4 min

Conexiant

Top Institutions in Dental

Brief introduction explaining scope and methodology.

#1

University of Wisconsin–Madison

Madison, WI
Key Differentiators
- Environmental Health
- Epidemiology
- Neurotoxicology
#2

Harvard T.H. Chan School of Public Health

Boston, MA
Key Differentiators
- Environmental Health
- Epidemiology
- Public Health
#3

University of California, Berkeley

Berkeley, CA
Key Differentiators
- Environmental Health Sciences
- Epidemiology
- Toxicology
#4

National Institute of Environmental Health Sciences (NIEHS)

Research Triangle Park, NC
Key Differentiators
- Environmental Health Research
- Neurotoxicology
- Epidemiology
#5

Johns Hopkins Bloomberg School of Public Health

Baltimore, MD
Key Differentiators
- Environmental Health
- Epidemiology
- Neuroepidemiology