It sounds like this is an extremely difficult time, and I genuinely feel for you. However, as I am no doctor, and this article was solely in response to a reader's request to address osteoporosis, my sense is that your mother was battling a number of challenges. I am so very sorry for your loss. As we age, a great many factors come into play, and osteoporosis is just one potential. How we absorb calcium, how the body responds to supplements, what might dictate any given condition can be terribly frustrating to understand. I agree that 69 is too young, and I hope you have loving people around you.