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 .
Prophylaxis of osteoporosis with calcium, estrogens and/or eelcatonin: comparative longitudinal study of bone mass.
OBJECTIVE To evaluate three different therapeutic regimens for the prevention of osteoporosis  in natural and surgical postmenopausal women who had been found to have rapid bone loss in analytical studies . METHODS A total of 104 naturally or surgically postmenopausal women were studied , and subsequently followed-up during 1 year for avoidance of the influence of seasonal variation on bone mass , a factor overlooked in several studies . They were r and omized into four groups of 26 patients each : the  untreated control group ( mean age 50 + /- 5 years ) ; the  hormonal replacement treatment ( HRT ) group ( mean age 48 + /- 6 years ) , which was treated for 24 days each month with transdermal 17 beta-estradiol , 50 mg/day , together with medroxiprogesterone , 10 mg during 12 days ; the  calcium group ( mean age 50 + /- 4 years ) , which was treated with elemental calcium , 1 g/day ; and the  calcitonin group ( mean age 50 + /- 5 years ) , which was treated for 10 days each month with eel calcitonin , 40 IU/day and with elemental calcium , 500 mg/day . Full-body bone densitometry , for measuring total body bone mineral content ( TB BMC ) , was carried out in all the women at baseline and 1 year . TB BMC was corrected for body weight by dividing its value by body weight ( TB BMC /W ) . RESULTS After 1 year TB BMC /W was lower in every group : -2.14 % ( P < 0.001 ) in the control group ; -0.14 % ( P = NS ) in the HRT group ( P < 0.05 vs. controls ) ; -0.18 % ( P = NS ) in the calcium group ( P < 0.05 vs. controls ) ; and -0.06 % ( P = NS ) in the calcitonin group ( P < 0.01 vs. controls ; P < 0.05 vs. calcium and HRT ) . CONCLUSIONS These findings show that all three treatments are effective in the prevention of postmenopausal loss of bone mass
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 .