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Nutrition policies govern many aspects of the food system impacting food choices and prices in outlets such as grocery stores, restaurants, and schools, thus affecting what we eat. Federal nutrition assistance programs such as the Supplemental Nutrition Assistance Program (SNAP), the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC), and the national school meal programs provide services to children and families with the goal to increase food security and reduce hunger. Research in this area includes evaluating the impacts of nutrition programs and policies on diet quality and overall health, as well as exploring innovative approaches to improve program reach, participation and implementation.
Research & Publications See all
September 2025
The Current State of Knowledge on SNAP Restrictions and Disincentives
Little is known about the impacts of SNAP restrictions on the health of program participants. This brief provides a narrative review of published evidence on SNAP restrictions and combined incentive-disincentive approaches, highlighting the approaches’ historical context, perceptions among program participants, and evidence of impact on SNAP participants’ purchases and health. The studies reviewed found mixed More
August 2025
Diet Quality and Weight Status are Predicted by Federal Nutrition Assistance Program Participation, Health, and Demographics
This study investigated whether demographic, social, and economic determinants of health, including length of time participating in safety net programs, are associated with diet quality and weight status in early childhood. Using the WIC infant and toddler feeding practices study-2, classification and regression tree identified the sequence of binary splits that best differentiated the sample More
August 2025
Universal Free School Meal Policies and Participation in the US National School Meal Programs
This study aimed to examine the impact of federal- and state-level Universal Free School Meal (UFSM) policies and related policies on National School Lunch Program (NSLP) and School Breakfast Program (SBP) participation rates during and after the COVID-19 pandemic. This comparative effectiveness research study used a natural experiment created by the COVID-19 pandemic to analyze More
July 2025
State Earned Income Tax Credit and Food Security: Results Among Economically At-Risk Households With Children
The purpose of this study was to evaluate the effects of the state Earned Income Tax Credit on food insecurity among economically at-risk U.S. households with children and explore differential effects across sociodemographic groups. The authors used an intent-to-treat causal inference design and household-level data from all 50 U.S. states available from the Current Population More