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Updated: Aug 6, 2026

Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Differences in bone mineral density between normal-weight children and children with overweight and obesity: a
J van Leeuwen1, B W Koes1, W D Paulis1
1Department of General Practice, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.
Insights
Overweight and obese children exhibit higher bone mineral density than normal-weight children. However, the long-term effects on adult bone health remain unclear due to limited longitudinal data.
Area of Science:
- Pediatric Endocrinology
- Bone Metabolism
- Public Health Nutrition
Background:
- Childhood overweight and obesity are growing public health concerns.
- Understanding the impact of excess weight on bone development is crucial for long-term health.
- Existing research presents varied findings on bone mineral density in relation to weight status in children.
Purpose of the Study:
- To systematically review and meta-analyze observational studies comparing bone mineral density (BMD) in normal-weight versus overweight/obese children.
- To quantify differences in bone mineral content and density across various body sites.
- To assess the influence of sex on the relationship between weight status and BMD.
Main Methods:
- Systematic review and meta-analysis of observational studies published up to June 2016.
- Inclusion of 27 studies comprising 5,958 children.
- Calculation of mean differences (MDs) for bone mineral content and density, with sensitivity analysis for sex differences.
Main Results:
- Overweight children showed a significantly higher whole-body bone mineral content (MD 213 g; 95% CI [166, 261]).
- Obese children demonstrated an even greater increase in whole-body bone mineral content (MD 329 g; 95% CI [229, 430]).
- Similar significant increases were observed for whole-body bone mineral density, with a stronger association noted in girls.
Conclusions:
- Overweight and obese children possess significantly higher bone mineral density compared to their normal-weight peers.
- The current evidence base, with only one longitudinal study, is insufficient to determine the long-term impact of childhood adiposity on adult bone health.
- Further longitudinal research is warranted to elucidate the lasting effects of childhood overweight and obesity on skeletal maturity and adult bone status.
Objective:
This study examines the differences in bone mineral density between normal-weight children and children with overweight or obesity.
Methods:
A systematic review and meta-analysis of observational studies (published up to 22 June 2016) on the differences in bone mineral density between normal-weight children and overweight and obese children was performed. Results were pooled when possible and mean differences (MDs) were calculated between normal-weight and overweight and normal-weight and obese children for bone content and density measures at different body sites.
Results:
Twenty-seven studies, with a total of 5,958 children, were included. There was moderate and high quality of evidence that overweight (MD 213 g; 95% confidence interval [CI] 166, 261) and obese children (MD 329 g; 95%CI [229, 430]) have a significantly higher whole body bone mineral content than normal-weight children. Similar results were found for whole body bone mineral density. Sensitivity analysis showed that the association was stronger in girls.
Conclusions:
Overweight and obese children have a significantly higher bone mineral density compared with normal-weight children. Because there was only one study included with a longitudinal design, the long-term impact of childhood overweight and obesity on bone health at adulthood is not clear.
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