Osteoporosis International

, Volume 17, Issue 12, pp 1794–1800

Skeletal benefits from calcium supplementation are limited in children with calcium intakes near 800 mg daily

Authors

    • Department of Endocrinology, Austin HealthUniversity of Melbourne
  • X.-F. Wang
    • Department of Endocrinology, Austin HealthUniversity of Melbourne
  • A. Evans
    • Bone and Mineral Unit, Austin Health
  • J.-P. Bonjour
    • Division of Bone Diseases, Department of Rehabilitation and Geriatrics (WHO Organization Collaborating Centre for Osteoporosis Prevention)University Hospital of Geneva
  • E. Seeman
    • Department of Endocrinology, Austin HealthUniversity of Melbourne
Original Article

DOI: 10.1007/s00198-006-0196-9

Cite this article as:
Iuliano-Burns, S., Wang, X., Evans, A. et al. Osteoporos Int (2006) 17: 1794. doi:10.1007/s00198-006-0196-9

Abstract

Introduction and Hypothesis

Calcium supplementation enhances bone mass accrual during administration, with a sustained benefit observed using milk-based calcium but not calcium salts. We tested the hypothesis that calcium from milk minerals but not calcium carbonate will be sustained after supplementation was discontinued.

Methods

Ninety-nine pre-pubertal boys and girls aged 5–11 years were followed for 12 months after being randomized to receive 800 mg/day of calcium from milk minerals (MM) or calcium carbonate (CC), or a placebo (Pla) in a 10-month double blind study. Total body and regional BMC, and femoral shaft bone dimensions were measured using dual energy x-ray absorptiometry. Group differences were determined using ANCOVA.

Results

In the intention to treat analysis of the entire sample, no group differences were observed in increments in BMC or bone dimensions during or after supplementation. In those children who remained pre-pubertal, greater gains in pelvis BMC in the milk mineral group than controls were sustained (37.9 versus 29.3% respectively, p<0.02).

Conclusion

In healthy children consuming about 800 mg calcium daily, calcium supplementation with milk minerals or calcium carbonate does not appear to be produce biologically meaningful benefits to skeletal health. A benefit of calcium supplementation in pre-pubertal was evident, but inconclusive, with the biological significance of the effect of calcium supplementation at the pelvis, and the longevity of this effect to be determined.

Keywords

BMCCalciumChildrenGrowthMilk minerals

Copyright information

© International Osteoporosis Foundation and National Osteoporosis Foundation 2006