[geggam]

various places on the net.. some sites are crackpot but others seem ok... I will let you decide which category this falls in

https://www.atsdr.cdc.gov/phs/phs.asp?id=210&tid=38

[marcosdumay]

There is nothing about bioaccumulation there.

Fluoride is one of those ions that diffuse thought and out of our bodies almost like there is no barrier anywhere.

[geggam]

Animals that eat fluoride-containing plants may accumulate fluoride. However, the fluoride accumulates primarily in the bones or shell rather than in edible meat.