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Impact of a Home-Based Obesity Prevention Intervention on Children's and Parents' BMI: Findings From the Guelph

Raphaëlle Jacob1, Andrea C Buchholz1, Gerarda Darlington2

  • 1Department of Family Relations and Applied Nutrition, University of Guelph, Guelph, Ontario, Canada.

Pediatric Obesity
|October 22, 2025
PubMed

Insights

A home-based obesity prevention program showed no significant impact on children's or parents' body mass index (BMI) after six months or one year. The intervention did not yield additional benefits compared to standard health information for families.

Area of Science:

  • Pediatrics
  • Public Health
  • Obesity Prevention

Background:

  • Early life interventions are crucial for preventing obesity and related comorbidities.
  • Assessing the impact of home-based strategies on pediatric and parental body mass index (BMI) is essential.

Purpose of the Study:

  • To evaluate a 6-month home-based obesity prevention intervention's effect on children's and parents' BMI.
  • To compare the intervention's effectiveness against a control group receiving general child health information.

Main Methods:

  • A randomized controlled trial involving 285 families with preschool-aged children.
  • Intervention focused on healthful household routines (meals, screen time, physical activity, sleep).
  • Control group received 6 emails on child health behaviors; analysis included 376 children and 481 parents.

Main Results:

  • No significant differences in children's or parents' BMI between intervention and control groups at post-intervention or 1-year follow-up.
  • Both groups showed non-significant decreases in BMI from baseline to post-intervention and 1-year follow-up.
  • The intervention demonstrated no additional effect on BMI compared to the control group.

Conclusions:

  • The home-based obesity prevention intervention did not significantly impact children's or parents' BMI.
  • The intervention provided no added benefit over the control group's health information over time.
  • Further data collection is needed to examine long-term effects as children age.
Abstract

Keywords:
Family Systems Theorychildhood obesityfamily‐based interventionhealthy household routineshome‐based interventionlifestyle habitsmotivational interviewingobesity preventionpreschool‐aged children

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