News Release
A hand pushing a cart filled with food through a grocery store.

PHILADELPHIA— The recent discontinuation of pandemic-related food assistance benefits, known as the Supplemental Food Assistance Program (SNAP) Emergency Allotments, led to a substantial increase in food insufficiency in the United States, according to a new study led by researchers at the Perelman School of Medicine at the University of Pennsylvania. The primary goal of SNAP, which distributes cash-like benefits to low-income families to buy food, is to combat food insecurity, which affects 10 percent of U.S. households. The findings were published in JAMA Health Forum today.

Comparing trends in food insufficiency in states that ended Emergency Allotments before the federal government ended them altogether in March 2023 with the rest of the U.S., the researchers found that after the temporary increases to households’ SNAP benefits ended, SNAP recipients experienced a 21 percent relative increase in both food insufficiency and food insufficiency among children. These findings imply that more than two million more American households faced food insufficiency when Emergency Allotments ended in all states.

According to the U.S. Department of Agriculture, food insecurity refers to the limited or uncertain availability of nutritionally adequate and safe foods, or the limited or uncertain ability to acquire acceptable foods in socially acceptable ways. Food insufficiency is a more severe condition than food insecurity and measures whether a household generally has enough to eat.

“To our knowledge, this is one of the first studies to evaluate the association between changes in SNAP benefit amounts and food insufficiency,” said Aaron Richterman, MD, MPH, an Instructor of Medicine in the Division of Infectious Diseases at Penn and the study’s lead author. “This study shows the severe consequences of reducing SNAP benefit amounts at a time when inflation was causing rapid rises in food prices, and is especially important because of upcoming federal negotiations surrounding SNAP’s renewal in the Farm Bill at the end of September.”

In addition to influencing chronic diseases like high blood pressure, heart disease, and diabetes, previous research found that mothers with school-aged children who face severe hunger are 56.2 percent more likely to have post-traumatic stress disorder and 53.1 percent more likely to have severe depression. Research has found that diet-related illness increased the risk for severe symptoms and death from COVID-19, with nearly two-thirds of COVID-19 hospitalizations in the U.S. were related to obesity, diabetes, hypertension, and heart failure.

Penn researchers analyzed data from more than 3 million survey respondents in the U.S. to assess the impact of losing the SNAP Emergency Allotment benefits. They focused on what happened in 18 states that discontinued the additional benefits earlier than other states in the U.S. by letting their formal public health emergency declarations expire.

“SNAP’s Emergency Allotments represented the largest-ever increases in benefit amounts for SNAP households,” added co-author Harsha Thirumurthy, PhD, a professor of Health Policy at Penn. “Our findings are particularly concerning given previous research linking food insecurity to numerous poor health outcomes. Reducing SNPA benefit amounts will have far-reaching consequences for public health.”


Penn Medicine is one of the world’s leading academic medical centers, dedicated to the related missions of medical education, biomedical research, excellence in patient care, and community service. The organization consists of the University of Pennsylvania Health System and Penn’s Raymond and Ruth Perelman School of Medicine, founded in 1765 as the nation’s first medical school.

The Perelman School of Medicine is consistently among the nation's top recipients of funding from the National Institutes of Health, with $550 million awarded in the 2022 fiscal year. Home to a proud history of “firsts” in medicine, Penn Medicine teams have pioneered discoveries and innovations that have shaped modern medicine, including recent breakthroughs such as CAR T cell therapy for cancer and the mRNA technology used in COVID-19 vaccines.

The University of Pennsylvania Health System’s patient care facilities stretch from the Susquehanna River in Pennsylvania to the New Jersey shore. These include the Hospital of the University of Pennsylvania, Penn Presbyterian Medical Center, Chester County Hospital, Lancaster General Health, Penn Medicine Princeton Health, and Pennsylvania Hospital—the nation’s first hospital, founded in 1751. Additional facilities and enterprises include Good Shepherd Penn Partners, Penn Medicine at Home, Lancaster Behavioral Health Hospital, and Princeton House Behavioral Health, among others.

Penn Medicine is an $11.1 billion enterprise powered by more than 49,000 talented faculty and staff.

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