Calcium citrate (500 mg elemental calcium) twice daily or placebo for 5 yr: BMD increases at 5 yr with calcium vs. placebo 1.6% greater for hip (p < 0.0001), 1.8% greater for lumbar spine ...

However, Burt and cols. evaluated endothelial function and myocardial perfusion parameters before and 3 hours after supplementation with 1,000 mg of calcium citrate and concluded that despite the ...