Just a quick update - have subsequently read the new Clinical guidelines for osteoporosis and gather is reluctance now to recommend Calcium because cardiologists believe is causing heart problems.Will be talking to my oncologist about this as am concerned - now only take 1 Caltrate Bone and Muscle Health daily and switching to Vitamin D3 only - am fair skinned redhead and sun averse.Only other supplement I Take is 1 Krill Oil tablets as recommended by medical oncologist who put me on Letrozole . The latter may just be making exp