Just another thought. The body tries to maintain a neutral ph. A lot of what we eat causes the body to be in a more acidic state forcing it to draw from alkaline stores i.e. bone. Lots of fruits and vegetables will help the body stay alkaline and prevent the use of bone stores to neutralize pH. Rather than trying to add more calcium (though I'm not saying that isn't important, especially now) perhaps focusing on preventing the body from losing it's calcium will better align with your feelings about not subscribing to the pharmaceutical regime suggested.

I know some individuals who had major jaw issues that developed while on bisphosphinate.