I used to worry a lot about the implications of studies like for people drinking fluoridated water, but at least in the SFBA, water is fluoridated to 0.7ppm, be

I used to worry a lot about the implications of studies like for people drinking fluoridated water, but at least in the SFBA, water is fluoridated to 0.7ppm, below the top threshold of the “low fluoride” group in this study