The primary aim is to evaluate the effectiveness of a multi-level intervention to prevent the onset of overweight and obesity in 7-9 year old children. The recreation center site intervention emphasizes changes in quantity and quality of physical activity and nutrition-related offerings within the centers. The home site intervention targets the home environment and household rule setting delivered via Family Health Coaches and tailored to the needs of the family. Five hundred forty one (541) families were recruited to participate in this project. Participants were selected in part based on residence in proximity to participating recreation centers. Eighteen (18) families living up to 3 miles from each of the 30 recreation centers involved in the project were be recruited to participate. For each family, one child was recruited between the ages of 5 and 8 years old and this child's primary caregiver was enrolled in the study. The study's primary outcome is Body Mass Index (kg/m2).