Erm, that webmd article you linked is for strontium, not strontium ferrite -- Sr vs SrO6Fe2O3.

Not saying strontium ferrite is good for you, but remember that when we talk about sodium intake or iron intake or whatever, that includes multiple different forms of those, not including the pure metal. That article actually mentions two different forms of strontium and hints at others.

That's fair and I was curious if the same thing would happen here. But this definitely isn't my domain :)

In any case, here's a lovely FDA safety data sheet of strontium ferrite. It... uh.. apparently doesn't cause pain when rubbed into the eyes of rabbits and guinea pigs. No LD50 tests were taken for the sheet though, so that's bittersweet I guess.

https://www.advancedenergy.com/globalassets/non-resource-lib...

Someone that's worried about radioactivity is talking about the atoms. And so is the webmd article.

Zero mismatch.

that might be because the post they responded to was also talking about elemental strontium:

> While natural strontium (which is mostly the isotope strontium-88) is stable, the synthetic strontium-90 is