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Obese moms who breastfeed (without Vitamin D) had low bone density in infants – Aug 2017

Maternal Obesity, 25-Hydroxy Vitamin D Concentration, and Bone Density in Breastfeeding Dyads.

J Pediatr. 2017 Aug;187:147-152.e1. doi: 10.1016/j.jpeds.2017.04.024. Epub 2017 May 23.
Sen S1, Penfield-Cyr A2, Hollis BW3, Wagner CL 3.
1 Dept of Pediatric Newborn Medicine, Brigham and Women's Hospital, Boston, MA. ssen2 at bwh.harvard.edu.
2 Department of Pediatric Newborn Medicine, Brigham and Women's Hospital, Boston, MA.
3 Division of Neonatology, Department of Pediatrics, Medical U of South Carolina, Charleston, SC.

VitaminDWiki Summary

Healthy pregnancies need lots of vitamin D has the following summary

1. Miscarriage 2.5 times Observe
2. Pre-eclampsia 3.6 timesRCT*
3. Gestational Diabetes 3 times RCT*
4. Good 2nd trimester sleep quality 3.5 times Observe
5. Premature birth 2 times RCT*
6. C-section - unplanned 1.6 timesObserve
7. Depression AFTER pregnancy 1.4 times RCT*
8. Small for Gestational Age 1.6 times meta-analysis
9. Infant height, weight, head size
     within normal limits
10. Childhood Wheezing 1.3 times RCT*
11. Additional child is Autistic 4 times Intervention
12.Young adult Multiple Sclerosis 1.9 timesObserve
13. Preeclampsia in young adult 3.5 timesRCT*
14. Good motor skills @ age 31.4 times Observe
15. Childhood Mite allergy 5 times RCT*
16. Childhood Respiratory Tract visits 2.5 times RCT*

To examine the association between maternal body mass index (BMI) and serum 25-hydroxy vitamin D [25(OH)D] concentration and bone density in mother-infant pairs.

The study was a secondary analysis of 234 exclusively breastfeeding dyads who were recruited in the first postpartum month for a randomized controlled trial of maternal vs infant vitamin D supplementation. Mean 25(OH)D concentrations and bone mineral density (BMD) were compared by BMI group. The adjusted association between maternal BMI and 25(OH)D and bone density was examined at 1, 4, and 7 months postpartum.

Obese breastfeeding women had lower 25(OH)D concentrations and higher BMD than lean women at all 3 time points (P  <  .01). Higher maternal BMI was associated with lower maternal serum levels of 25(OH)D at 1, 4, and 7 months postpartum (adjusted β = -0.45 ng/ml per kg/m2, 95% CI -.076, -0.14, at 1 month) and higher BMD at the same time points (β = 0.006 BMD z score; 95% CI 0.003, 0.01 at 1 month). Seventy-six percent of infants were vitamin D deficient at 1 month of age. Infants born to overweight and obese mothers had lower 25(OH)D concentrations than infants of lean mothers (P < .01). For infants in the maternal supplementation group, higher maternal BMI was associated with lower 25(OH)D concentrations at 4 months (β = -0.68; 95% CI -1.17, -0.20) and lower bone density at 7 months (β = -0.001; 95% CI -0.002, -0.0001).

CONCLUSIONS: In exclusively breastfeeding dyads, maternal obesity is associated with lower maternal and infant serum 25(OH)D concentrations, which may impact infant bone density.

TRIAL REGISTRATION: ClinicalTrials.gov: NCT00412074.

PMID: 28549637 DOI: 10.1016/j.jpeds.2017.04.024

 Download the PDF via [https://www.researchgate.net/home |ResearchGate] from VitaminDWiki

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