Thank you for your thoughtful and detailed response. I have had no fractures, despite a very bad fall while in hospital, but had a pelvic scan which apparently revealed the problem, no scale or percentage given, but the scan was the result of high calcium and vit. D. in my blood which apparently leaches out bone density. GP prescribed vit. D. supplement - I used to take a D3 and K2 but stopped at diagnosis of too much D -and went to prescribe calcium, so I raised this discrepancy and he said he wouln't prescribe the calcium then. Makes no sense to me but I have an appointment in a month to discuss, and need to know what to ask to get the best value from it. Meanwhile I read the info leaflets that came with the meds and am very very reluctant to take them. I have been in a wheelchair for over 6 months, so load-bearing exercise is an issue, previously was very strong and fit. My diet is great - I'm a nutrition geek, so no lack there. but I am an elderly female, so tick a lot of the wrong boxes. My GP is good and we have a good relationship, and I don't want to ruin this by refusing meds, however it's my body my future, and my decision what I put in it. Ideally, I would like to have a scan in a year's time to see what if anything has changed. If I took the meds there would be no checks for 3 years. If anyone else has lived experience I would appreciate them sharing it.