Overweight and obesity
Conditions
Interventions
Intervention Group S:Digital Meal Planning + AI-Driven Dynamic Recipe Adjustment+nutrition report provided
Intervention Group A:Traditional meal planning+ AI-Driven Dynamic Recipe Adjustment+nutrition report provided
Intervention Group B:Traditional meal planning, no nutrition report provided
Intervention Group C:Weight Loss Recipe Recommendations
Sponsors
Sun Yat-sen University School of Public Health
Eligibility
Sex/Gender
All
Age
7 Years to 11 Years
Inclusion criteria
Inclusion criteria: 1. School Inclusion Criteria and Sample Size Five eligible public elementary schools in Guangzhou that provide meals through school cafeterias were randomly selected and assigned to five groups: four intervention groups and one control group. Inclusion criteria: (1) Public elementary school; (2) Meals provided via school cafeteria; (3) Enrollment of at least 1,000 students to ensure sufficient overweight/obese children meeting inclusion criteria; (4) Willingness to cooperate with the research team in implementing meal intervention and collecting relevant data. 2. Student Inclusion Criteria and Sample Size Leveraging Guangzhou's annual physical fitness assessments for primary and secondary students, all enrolled students underwent measurements of physical indicators such as weight and height. Children meeting overweight/obesity criteria were preliminarily identified using the 2018 BMI Classification Standards for Screening Overweight and Obese School-Aged Children and Adolescents established by the Chinese Obesity Working Group. Further questionnaires were administered to preliminarily identified overweight/obese children to assess their school cafeteria meal patterns and presence of underlying conditions. Eligible children meeting criteria—those eating lunch at school cafeterias and consuming breakfast/dinner at home—were selected. Participation consent was obtained from both children and parents, with enrolled participants recruited into the study. Approximately 100 students were recruited from each school, totaling around 500 students across the five schools. Inclusion criteria: (1) Primary school students aged 7–11 years; (2)Overweight or obese, determined according to the "BMI Classification Standard for Screening Overweight and Obesity in Chinese School-Aged Children and Adolescents" established by the China Obesity Task Force in 2018; (3) Eat lunch in the school canteen and have breakfast and dinner at home; (4)Willing to participate in the study and have obtained written informed consent signed by parents; (5) Parents have the ability to operate a smartphone.
Exclusion criteria
Exclusion criteria: 1.School Exclusion Criteria: Schools meeting any of the following criteria: (1) Non-public educational institutions such as private elementary schools or international schools;(2) Schools that do not provide cafeteria meals or primarily rely on external catering services like third-party meal delivery companies; (3) Schools unable to cooperate with the implementation of research interventions due to management, policy, or other reasons. 2.Student Exclusion Criteria: Individuals meeting any of the following: (1) Participation in other weight-loss programs within the past 3 months; (2) Use of antibiotics for 7 consecutive days or more within the past 3 months; (3) Secondary obesity caused by medication, disease, etc.; (4) Severe disease affecting major organs or presence of eating disorders.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Weight;Waist circumference;Height;Muscle;Dynamic blood glucose;HsCRP;Four Blood Lipid Tests;Blood uric acid;Fasting blood glucose;Fasting insulin;Blood pressure;Dietary Assessment;Hip circumference;Liver and kidney function;Gut microbiota; | — |
Secondary
| Measure | Time frame |
|---|---|
| Sleep Status;Level of athletic performance;Appetite Rating ; | — |
Countries
China
Contacts
Public ContactYanna Zhu
School of Public Health, Sun Yat-sen University
Outcome results
None listed