This post demonstrates how dangerous strontium is for human health: http://nukeprofessional.blogspot.com/2013/03/strontium-bogeyman-exists-wicked-one.html
I stopped drinking milk for 2 years and recently began again.
Perhaps I should stop. The strontium I ingest in diary products may very well outlive me.
Read about its dangers and what you can do to reduce your personal exposure.