Early-Life Strategies for Preventing Obesity in Preschool-aged Children

"Kindergarten: Train teachers and integrate healthy weight management into kindergarten health policies; deliver health education sessions for children; monitor extra dietary intake and physical activity; conduct monthly height and weight measurements.~Family: Provide multi-format health education (lectures, short videos, articles) to communicate core intervention messages; set health behavior goals and deliver personalized feedback; conduct motivational interviewing in offline parent meetings or by phone.~Hospital: Offer professional health guidance and medical services. PKU-SMART online platform: Health Education Module; Growth Monitoring Module; Health Behavior Module; Home-Kindergarden Partnership Module."