How much calcium and vitamin d3 should i take a day for osteropinia ?

Depends on...: This depends on your diet ; sun exposure. Most adults need 5-8000 iu a day of vit d3 during fall ; winter months but can get enough d from exposure to mid-day sun in spring ; summer- but take year-round if you don't use sunscreen or get much sun. Amount of calcium should be 400-1000mg depending on diet but vit k2 15 mg (not mcg), magnesium ; other nutrients are crucial too-see http://bit.Ly/1a48ofs.