Fluoride lowers intelligence? First-ever widescale water supply study debunks Kennedy’s scare claim Erika Edwards, Kaan Ozcan | NBC News | April 16, 2026

https://geneticliteracyproject.org/2026/04/16/fluoride-lowers-intelligence-first-ever-widescale-water-supply-study-debunks-kennedys-scare-claim/