Cancer survivors experiencing food insecurity face a 28 percent relative increase in the risk of death compared to those with consistent access to healthy food, according to a study published in JAMA Health Forum. Researchers at the University of Pennsylvania Perelman School of Medicine analyzed nationwide health data to uncover how nutritional barriers impact long-term mortality outcomes among individuals with a history of cancer.
Study Findings on Cancer Survivorship and Nutrition
The investigation utilized data from the U.S. Centers for Disease Control and Prevention’s 2011 and 2012 National Health Interview Surveys, paired with the U.S. National Death Index through 2019. Investigators evaluated 5,603 adult respondents aged 40 and older who reported a prior cancer diagnosis and answered questions regarding household food security. Among the participants, 579 individuals, or 10.3 percent, reported living with food insecurity, defined as limited or uncertain availability of nutritionally adequate foods.
After adjusting for demographic and health variables—including sex, age, smoking status, and other chronic illnesses—researchers found a persistent mortality gap. Food-insecure cancer survivors experienced a statistically significant 28 percent increased risk of all-cause mortality compared to food-secure peers. Furthermore, subsets of respondents who reported food insecurity alongside non-participation in government food assistance programs faced a roughly 42 percent increased risk of all-cause mortality, alongside a 42 percent increased risk of cancer-specific mortality.
“Food matters in cancer care and outcomes,” said study senior author Jaya Aysola, MD, MPH, associate professor of medicine and executive director of the Centers for Health Equity Advancement at Penn Medicine. Aysola noted that simple, integrated interventions could help prolong survival by connecting patients with stable sources of proper nutrition.
Broader Health Implications of Food Insecurity
Food insecurity affects approximately 40 million people across the United States. Beyond its newly documented impact on cancer survival, socioeconomic lack of proper nutrition is a recognized driver of various chronic conditions. Public health data links food scarcity to elevated risks for heart disease, diabetes, hypertension, kidney disease, colorectal cancer, and specific mental health disorders.
While previous research established connections between nutritional shortages and general chronic illness, this study is the first to specifically review and quantify the link between food insecurity and mortality outcomes across cancer survivors. The findings highlight nutrition as a critical, yet frequently overlooked, component of survivorship care.
Clinical Integration and Policy Recommendations
Study authors suggest that healthcare providers must adjust routine oncology care to account for socioeconomic barriers. Routine screening during clinical visits could identify vulnerable patients early in their treatment and recovery timelines.
“Screening for food-insecurity in clinical practice, expanding food assistance program eligibility, and guiding people to resources may help reduce this apparent connection,” said John Lin, a medical student and HEAL fellow at the Centers for Health Equity Advancement, and the study’s first author.
By identifying nutritional deficits in clinical settings and streamlining enrollment in federal and community assistance programs, medical teams can address foundational socioeconomic determinants of health that influence post-treatment survival rates.
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