Can an excess intake of fluoride cause hypocalcemia?

Updated: Aug 08, 2019
  • Author: Manish Suneja, MD, FASN, FACP; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

Rarely, an excess intake of fluoride can cause hypocalcemia; this effect is presumably mediated by inhibition of bone resorption. Overfluorinated public water supplies and ingestion of fluoride-containing cleaning agents have been associated with low serum calcium levels. In this case, hypocalcemia is thought to be due to excessive rates of skeletal mineralization secondary to formation of calcium difluoride complex.


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