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Effects of Family-Based Intervention for Childhood Obesity on Parental and Offspring Outcomes: A Systematic Review

Ying Zhang1, Luojie Pang1, Shenglan Yang1

  • 1School of Nursing, Shanghai University of Traditional Chinese Medicine, Shanghai, China.

Obesity Reviews : an Official Journal of the International Association for the Study of Obesity
|March 5, 2026
PubMed

Insights

Family-based interventions significantly reduce childhood obesity by engaging parents as active partners. These programs improve children's BMI z-score and body fat, highlighting the importance of parental involvement and motivational strategies for effective treatment.

Area of Science:

  • Public Health
  • Pediatrics
  • Behavioral Science

Background:

  • Childhood obesity presents a significant global health challenge with strong intergenerational links.
  • Existing research often underemphasizes the crucial role of parents in childhood obesity interventions.
  • This review focuses on family-based approaches where parents are active participants.

Purpose of the Study:

  • To systematically review and analyze the impact of family-based interventions on health outcomes for children with obesity and their parents.
  • To evaluate interventions that position parents as active co-agents in managing childhood obesity.
  • To assess effects beyond the child, including parental health metrics.

Main Methods:

  • A systematic review and meta-analysis of randomized controlled trials (RCTs) were performed.
  • Searched six databases for RCTs involving children with obesity and family members.
  • Primary outcomes included children's BMI z-score and parental BMI; secondary outcomes covered adiposity and dietary behaviors.

Main Results:

  • Twenty RCTs involving 1740 participants showed significant reductions in children's BMI z-score.
  • Long-term BMI z-score and body fat percentage also improved with these interventions.
  • Interventions integrating health education, behavioral strategies, and motivational support were most effective.
  • Parental engagement as active co-participants, not just supporters, led to greater child benefits.
  • No significant impact on parental BMI was observed.

Conclusions:

  • Family-based interventions are effective in improving health outcomes for children with obesity.
  • The strategic involvement of parents as active co-agents is key to intervention success.
  • Integrating motivational strategies further enhances the efficacy of these family-centered approaches.
Abstract

Keywords:
childhood obesityfamily‐based interventionmeta‐analysis

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