Calcium doesn't prevent fractures. . . If you don't take it

Article

Dietary supplementation with 1,200 mg/d calcium carbonate didn't prevent fractures in an ambulatory elderly population because compliance was low. Those who took it, however, benefited.

Dietary supplementation with 1,200 mg/d calcium carbonate didn't prevent fractures in an ambulatory elderly population because compliance was low. Those who took it, however, benefited.

The findings come from a 5-year, double-blind, placebo-controlled study of almost 1,500 women over the age of 70. The authors found that while calcium supplementation did not significantly reduce fracture risk (hazard ratio 0.87; 95% CI; 0.67–1.12), it was because almost half the women (43%) didn't comply with the treatment regimen. In the 56.8% of women who took at least 80% of their tablets (calcium or placebo), the women who were receiving calcium had a hazard ratio for fracture of 10.2% versus 15.4% in the women receiving placebo (0.66; 95% CI; 0.45–0.97). The calcium-treated patients also had better quantitative ultrasonography findings of the heel, better femoral neck and whole-body dual x-ray absorptiometry data, and better bone strength.

The only adverse event that was increased in the treated group versus the placebo group was constipation.

Newsletter

Get the latest clinical updates, case studies, and expert commentary in obstetric and gynecologic care. Sign up now to stay informed.

Recent Videos
Neal Barnard, MD, FACC, highlights AMA's new breast cancer prevention guidelines | Image Credit: pcrm.org.
Zachary Wagner, PhD, discusses the harms of bias in reproductive care | Image Credit: ornsife.usc.edu.
Ciera Kirkpatrick, PhD, shows how TikTok is transforming cervical cancer awareness | Image Credit: linkedin.com.
Maria Gallo, PhD, discusses high attendance at crisis pregnancy centers | Image Credit: © x.com.
Related Content
© 2025 MJH Life Sciences

All rights reserved.