The Preschoolers' Health Literacy Project (Pre-HELP) was a school-based study designed to promote health literacy in preschool children through age-appropriate educational activities. The project included activities focused on movement, food, and environmental health. The main purpose of the study was to examine whether a multidisciplinary educational program could improve health-related knowledge, skills, and behaviors in children aged 3 to 6 years. Preschool classes were assigned to either an intervention group or a control group. Children in the intervention group participated in structured educational laboratories, including a play-based motor program, while children in the control group continued their usual preschool activities. Outcomes were assessed before and after the intervention period.