Racial gaps in food insecurity have persisted for 23 years, but SNAP participation narrows them

Twenty-three years of data. Multiple recessions, policy changes, and economic recoveries. And the racial gap in food insecurity barely moved.

A cross-sectional study published in JAMA Health Forum documents what many public health researchers have long suspected but lacked comprehensive longitudinal data to demonstrate: racial disparities in food insecurity are stubbornly persistent, cutting across income levels and resisting the effects of macroeconomic improvement and policy intervention alike.

Disparities at every income level

The study, led by Cordelia Kwon at Harvard, builds on prior research by documenting intersectional disparities, meaning the combined effects of race and income on food insecurity rather than either factor in isolation. The core finding is that racial disparities exist not only among low-income households, where food insecurity rates are highest overall, but also among higher-income households.

This matters because it challenges the assumption that food insecurity is primarily a poverty problem that would resolve if incomes rose. For Black and Hispanic households, the risk of food insecurity remains elevated relative to white households even at comparable income levels. The gap has persisted across 23 years of data collection despite multiple intervening changes in economic conditions and food assistance policy.

SNAP narrows the gap

One finding offers a qualified positive signal. Racial disparities in food insecurity were smaller among households participating in the Supplemental Nutrition Assistance Program (SNAP) than among non-participating households. This pattern, consistent with findings from a prior cross-sectional study, suggests that SNAP does not merely reduce food insecurity overall but specifically helps reduce the racial disparity.

The mechanism is not entirely clear from this study. It could be that SNAP benefits are proportionally more impactful for minority households facing greater food access barriers. It could also reflect selection effects: the households that successfully enroll in SNAP may differ systematically from eligible households that do not participate. But the consistency of the finding across a 23-year period strengthens the case that the program plays a meaningful equalizing role.

Policy changes have not been enough

Over the study period, the United States experienced the Great Recession and recovery, the COVID-19 pandemic and its associated emergency food assistance expansions, changes to SNAP eligibility and benefit levels, and various state and local food security initiatives. None of these shifts eliminated the underlying racial disparity.

This persistence suggests that the drivers of unequal food insecurity run deeper than any single policy or economic cycle. Structural factors including residential segregation, differential access to grocery stores and healthy food outlets, wealth inequality that buffers some households against income shocks but not others, and discrimination in employment and housing all contribute to a landscape in which race continues to predict food security independent of income.

Limitations of cross-sectional data

The study is cross-sectional, meaning it compares different households at different points in time rather than tracking the same households over 23 years. This design can document trends in disparities but cannot determine whether specific policies caused changes for specific families. The direction of causation between SNAP participation and reduced disparities is also uncertain: the program may reduce disparities, or households with certain characteristics may be both more likely to participate and less likely to be food insecure.

The study does not break down food insecurity by severity, which ranges from occasional anxiety about food supply to actual hunger. Nor does it examine the nutritional quality of food consumed, which can vary even among food-secure households.

What the numbers demand

The persistence of these disparities across more than two decades is itself the study's most important finding. It indicates that the problem is not cyclical, not self-correcting, and not amenable to general economic improvement alone. Targeted interventions that address the specific barriers faced by minority households, whether in food access, income stability, or SNAP enrollment, appear necessary to close a gap that time alone will not narrow.