Is this the End Of Fluoride?, page-8

Add naturally occurring fluoride like in green tea

Plus fluoride in toothpaste.

And a little fluoride gel which your dentist puts on your teeth

Also no account is taken for individual tolerance

So one can see the dosage could possibly exceed the 1.5 mg "safe" limit

Like aluminium, fluoride has no benefit to the human body and is toxic in any appreciable amount

https://ntp.niehs.nih.gov/whatwestudy/assessments/noncancer/completed/fluoride