Calcium supplements  increased BMD by 0.7 - 1.8 % at all five skeletal sites at one , two , and over two and a half years , but the size of the increase in BMD at later time points was similar to the increase at one year .
Increasing calcium intake from dietary sources or by taking calcium supplements produces small non-progressive increases in BMD , which are unlikely to lead to a clinical ly significant reduction in risk of fracture
OBJECTIVE To determine whether increasing calcium intake from dietary sources affects  bone mineral density ( BMD ) and , if so , whether the effects are similar to those of calcium supplements .
The rate of bone mineral loss in normal men and the effects of calcium and cholecalciferol supplementation.
OBJECTIVE To determine the rate of bone loss in normal men , and to examine the effects of dietary calcium and cholecalciferol supplementation on bone loss in men . DESIGN Double-blinded , placebo-controlled 3-year trial of supplementation with calcium ( 1000 mg/d ) and cholecalciferol ( 25 micrograms/d ) . SETTING Clinical research center at a university medical facility . SUBJECTS Normal men 30 to 87 years old , recruited from the Portl and community . MEASUREMENTS AND MAIN RESULTS Radial bone mineral content ( assessed by single-photon absorptiometry ) fell by 1.0%/y ( 95 % CI , -1.3 % to 0.7 % ) at a proximal radial site and 1.0%/y ( 95 % CI , -1.4 % to -0.6 % ) at a distal radial site . Vertebral bone mineral content ( assessed by dual-energy quantitative computed tomography ) declined by 2.3%/y ( 95 % CI , -2.8 % to -1.8 % ) . In these healthy men with a high basal dietary calcium intake ( 1159 mg/d ) , calcium and cholecalciferol supplementation did not affect bone loss at any site . CONCLUSIONS Normal men experience a substantial bone loss at both axial and appendicular sites that is not prevented by calcium and vitamin D supplementation in a well-nourished population
Calcium supplements  increased BMD by 0.7 - 1.8 % at all five skeletal sites at one , two , and over two and a half years , but the size of the increase in BMD at later time points was similar to the increase at one year .
Increasing calcium intake from dietary sources or by taking calcium supplements produces small non-progressive increases in BMD , which are unlikely to lead to a clinical ly significant reduction in risk of fracture
OBJECTIVE To determine whether increasing calcium intake from dietary sources affects  bone mineral density ( BMD ) and , if so , whether the effects are similar to those of calcium supplements .