Bone powder as healing substance

My dad, who just turned 80 last week told me, that his mom would buy bone powder to feed to sick animals and they usually became better very quickly. However now we can't buy it in feed stores anymore. If it is good for animals there is a very good chance it would be good for people as well. I would not want premade anyway as I want truly grassfed animal bones used for this. I am aware of bonemeal used as fertilizer, but who knows what requirements if any are for these.  Anybody made their own bone powder? Do I just cook it as bone broth and when they are soft, blend it? I am just thinking in this way not much might be left there to make it worth taking?
 

Hi Joy,
I think I would not bother with the bone powder and just stop at bone broth. Rather than dry the bones and crush them into a powder and then reheat them; I would suggest just cook them into a bone broth. It might not have as much calcium as ground up bones, but it will still have lots of the good stuff that comes out of the bones.

If you were making your own bone powder, then the bone broth would be much easier. If you were buying the bone powder, I think the bone broth might be cheaper.

**Edit - sorry, just fixing some typos.