Have you considered increasing your dietary calcium instead of taking supplements? From what I've read, calcium eaten in food is more readily taken up by bones than calcium supplements which can cause health problems like calcium oxalates which can accumulate in kidneys and joints, especially when high oxalate foods are eaten. Calcium supplements are also not good for anyone with heart disease (me) or gastrointestinal problems. Good amounts of dietary calcium taken daily don't cause the same problems. I eat a generous amount of cheese, milk and usually yoghurt every day along with vitamins D3 and K2 to help the dietary calcium get to the bones where it belongs.