Add into your diet foods high in Magnesium and Zinc
Magnesium plays an important role in converting vitamin D into the active form that promotes calcium absorption. This mineral is found in small amounts in most foods, so supplementing with magnesium glycinate, citrate or carbonate may be beneficial. The other mineral, zinc promotes the formation of bone-building cells and prevents the excessive breakdown of bone. Great sources of zinc include beef, flaxseeds and spinach.