ArticlePloS one2022
Effects of breastfeeding on postpartum weight change in Japanese women: The Japan Environment and Children's Study (JECS).
Article in PloS one, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Breastfeeding behaviours in women with obesity; associations with weight retention and the serum metabolome: a secondary analysis of UPBEAT.International journal of obesity (2005) · 2024Trial
- Women's health and female fertility: current evidence and knowledge gaps in the Asia-Pacific region.The Lancet regional health. Western Pacific · 2025Review
- The impact of pediatric constipation on appendicitis: a prospective birth cohort in the Japan Environment and Children's Study.BMC pediatrics · 2025Article
- Neurodevelopmental Pathways from Maternal Obesity to Offspring Outcomes: An Umbrella Review of Cognitive and Behavioral Consequences Across Development.Healthcare (Basel, Switzerland) · 2025Review
- Article
- Association of breastfeeding duration with overweight and obesity among women in Ghana.Frontiers in global women's health · 2024Article
- Maternal Dietary Zinc Intake during Pregnancy and Childhood Allergic Diseases up to Four Years: The Japan Environment and Children's Study.Nutrients · 2023Article
- Allergic Disorders and Risk of Anemia in Japanese Children: Findings from the Japan Environment and Children's Study.Nutrients · 2022Article
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimThe aim of this study was to examine the relationship between breastfeeding and postpartum maternal weight change.
methodThis study used data from the Japan Environment and Children's Study (JECS), an ongoing nationwide birth cohort study. Participants were categorized into two groups: full breastfeeding (FB) and non-full breastfeeding (NFB) groups. Postpartum weight changes between the FB (n = 26,340) and NFB (n = 38,129) groups were compared.
resultsAt 6 months postpartum, mean weight retention was significantly lower in the FB group than in the NFB group (0.2 vs 0.8 kg, respectively, p<0.001). Weight retention differed by pre-pregnancy body mass index (BMI), with postpartum weights of overweight (pre-pregnancy BMI 25.0-29.9) and obese (pre-pregnancy BMI ≥30.0) participants being lower than pre-pregnancy weight; this trend was more pronounced in the FB group than in the NFB group (overweight: -2.2 vs -0.7 kg, respectively; obese: -4.8 vs -3.4 kg, respectively). Factors affecting weight retention at 6 months postpartum were weight gain during pregnancy (β = 0.43; p<0.001), pre-pregnancy BMI (β = -0.147; p<0.001) and feeding method. FB resulted in lower weight retention than NFB (β = -0.107; p<0.001).
conclusionBreastfeeding reduced maternal weight retention, which was greater in mothers who were obese before pregnancy. For obese women, active breastfeeding may improve their health.
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