Effect of breastfeeding on weight retention from one pregnancy to the next: results from the North Carolina WIC program.

Journal Article (Journal Article)

OBJECTIVES: Pregnancy-related weight retention can contribute to obesity, and breastfeeding may facilitate postpartum weight loss. We investigated the effect of breastfeeding on long-term postpartum weight retention. METHODS: Using data from the North Carolina Special Supplemental Nutrition Program for Women, Infants, and Children (WIC; 1996-2004), weight retention was assessed in women aged 18 years or older who had more than one pregnancy available for analysis (n=32,920). Using multivariable linear regression, the relationship between duration of breastfeeding after the first pregnancy and change in pre-pregnancy weight from the first pregnancy to the second pregnancy was estimated, controlling for demographic and weight-related covariates. RESULTS: Mean time between pregnancies was 2.8 years (standard deviation (SD) 1.5), and mean weight retention from the first to the second pregnancy was 4.9kg (SD 8.7). In covariate-adjusted analyses, breastfeeding for 20 weeks or more resulted in 0.39kg (standard error (SE) 0.18) less weight retention at the beginning of the second pregnancy relative to no breastfeeding (p=0.025). CONCLUSION: In this large, racially diverse sample of low-income women, long-term weight retention was lower among those who breastfed for at least 20 weeks.

Full Text

Duke Authors

Cited Authors

  • Østbye, T; Krause, KM; Swamy, GK; Lovelady, CA

Published Date

  • November 2010

Published In

Volume / Issue

  • 51 / 5

Start / End Page

  • 368 - 372

PubMed ID

  • 20655944

Electronic International Standard Serial Number (EISSN)

  • 1096-0260

Digital Object Identifier (DOI)

  • 10.1016/j.ypmed.2010.07.017


  • eng

Conference Location

  • United States