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Calcium Supplementation Increases Blood Creatinine Concentration In A Randomized Controlled Trial, Elizabeth L. L. Barry, Leila A. A. Mott, Michal L. L. Melamed, Judith R. Rees, Anastasia Ivanova, Robert S. Sandler, Dennis J. Ahnen, Robert S. Bresalier, Robert W. Summers, Roberd M. Bostick, John A. Baron
Calcium Supplementation Increases Blood Creatinine Concentration In A Randomized Controlled Trial, Elizabeth L. L. Barry, Leila A. A. Mott, Michal L. L. Melamed, Judith R. Rees, Anastasia Ivanova, Robert S. Sandler, Dennis J. Ahnen, Robert S. Bresalier, Robert W. Summers, Roberd M. Bostick, John A. Baron
Dartmouth Scholarship
Background: Calcium supplements are widely used among older adults for osteoporosis prevention and treatment. However, their effect on creatinine levels and kidney function has not been well studied.
Methods: We investigated the effect of calcium supplementation on blood creatinine concentration in a randomized controlled trial of colorectal adenoma chemoprevention conducted between 2004–2013 at 11 clinical centers in the United States. Healthy participants (N=1,675) aged 45–75 with a history of colorectal adenoma were assigned to daily supplementation with calcium (1200 mg, as carbonate), vitamin D3 (1000 IU), both, or placebo for three or five years. Changes in blood creatinine and total …