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by veemjeem 1698 days ago
With such a small amount in tap water, it seems like it would be hard to conduct a controlled study.
2 comments

Seems like that is also in favour for fluoride being completely safe, then. After all, if you can't measure it, then...
Why? A small amount of arsenic or fentanyl wouldn't be difficult to study. There is nothing intrinsic about any number that makes it difficult to perform science.