Just look at the studies; they have a list. Right now I am on Prolia as a preventive because I have osteopenia. I started taking strontium citrate 340mgm with it but then thought they might not mix well. I don’t want another Prolia because I had 2, and now the dreaded Reclast. I am still on lowering doses of prednisone so that’s considered a high risk. I’m also eating prunes for what that’s worth. I stopped Algae Cal because I can never tolerate any calcium supplements in it; I use lactose free yogurt smoothies and cheeses.
My primary doc, a geriatrician, OK’d the strontium citrate. I’ve yet to run it past my endocrinologist.
Since strontium is ubiquitous in the soil drug companies make no profit on drug development. There are studies on animals though by other countries.