The Massachusetts Childhood Obesity Research Demonstration Project, also known as Mass in Motion, is a statewide initiative aimed at promoting healthy lifestyles and preventing childhood obesity through a multilevel intervention strategy. Funded by the Affordable Care Act, the program focuses on combining healthcare interventions with community programs that target social and environmental factors affecting child health. Despite progress in improving community health and access to resources, the program does not adequately address economic barriers that limit healthy food access for low-income families.