Cortisol in Human Milk Predicts Child BMI
Publication Date
12-2016
Document Type
Article
Organizational Units
College of Arts Humanities and Social Sciences, Psychology
Keywords
Breastfeeding, Cortisol, Childhood obesity, Body mass index (BMI)
Abstract
Objective
Breastfeeding has been linked to lower rates of childhood obesity. Human milk contains cortisol, known to regulate glucose storage and metabolism. The aim of this study was to to test the hypothesis that early exposure to cortisol in human breast milk helps to modulate infant body mass index (BMI) trajectories over the first 2 years of life.
Methods
Growth curve modeling was used to examine whether infant exposure to cortisol in human milk at 3 months predicted changes in child body mass index percentile (BMIP) at 6, 12, and 24 months of age in 51 breastfeeding mother–child pairs.
Results
Infants exposed to higher milk cortisol levels at 3 months were less likely to exhibit BMIP gains over the first 2 years of life, compared with infants exposed to lower milk cortisol. By age 2, infants exposed to higher milk cortisol levels had lower BMIPs than infants exposed to lower milk cortisol. Milk cortisol was a stronger predictor of BMIP change in girls than boys.
Conclusions
Cortisol exposure through human milk may help to program metabolic functioning and childhood obesity risk. Further, because infant formula contains only trace amounts of glucocorticoids, these findings suggest that cortisol in milk is a novel biological pathway through which breastfeeding may protect against later obesity.
Copyright Date
11-28-2016
Copyright Statement / License for Reuse
All Rights Reserved.
Publication Statement
Copyright is held by The Obesity Society. User is responsible for all copyright compliance. This article was originally published as:
Hahn-Holbrook, J., Le, T. B., Chung, A., Davis, E. P., & Glynn, L. M. (2016). Cortisol in human milk predicts child BMI. Obesity, 24(12), 2471-2474. https://doi.org/10.1002/oby.21682
Rights Holder
The Obesity Society
Provenance
Received from CHORUS
File Format
application/pdf
Language
English (eng)
Extent
4 pgs
File Size
134 KB
Publication Title
Obesity
Volume
24
Issue
12
First Page
2471
Last Page
2474
ISSN
1930-739X
PubMed ID
27891832
Recommended Citation
Hahn-Holbrook, J., Le, T. B., Chung, A., Davis, E. P., & Glynn, L. M. (2016). Cortisol in human milk predicts child BMI. Obesity, 24(12), 2471-2474. https://doi.org/10.1002/oby.21682