This is why advocates were scared of this report. Because people would read the executive summary and not the full thing. You need an INSANE amount of fluoride for the effects described.
But yes, if you are in an area where there is like 100x the ADA recommended dose of fluoride in your water, your kid may lose a couple IQ points. Nothing like lead, mind you, but a couple
Edit: let’s talk about healthy things. Coffee increases your productivity. What happens if you drink 100 cups at once? Yeah, excessive things are bad