@tillymack I don’t a normal serum calcium does not mean you are getting enough to support bone growth. As we age we normally lose bone density. Taking Vitamin D with Vitamin K helps to keep calcium from being deposited in tissues as opposed to the bones. I wonder how much I actually absorb these days with all my health issues and amount of prednisone I have had to take so I decided to take a supplement. I have had enough fractures to say that as long as we monitor my calcium I will take supplements and meds if it keeps me from future fractures. When I was younger I worried about it now not so much! I hope your doctor gets back to you.