A Multifaceted Intervention to Reduce Obesity Among Preschool Children: Study Protocol for a Randomized Controlled Trial in Suzhou City

Inclusion Criteria: * Children were eligible for inclusion if they were between 3 and 6 years old and their guardians had been informed and provided consent to participate in the study. Exclusion Criteria: * Exclusion criteria included: a history of heart disease, hypertension, diabetes mellitus, asthma, viral hepatitis, or nephritis; obesity due to endocrine disease or medication; abnormal physical development or deformities; inability to participate in school sports; or recent weight loss due to vomiting or medication use within the past three months.