Barriers to Nutrition Security in the US.

Importance: Nutrition security is increasingly recognized as a critical but underexamined driver of health. Identifying barriers to nutrition security is essential for developing effective interventions. Objective: To examine associations among barriers to healthy eating, their prevalence by sociodemographics, and their associations with health conditions. Design, Setting, and Participants: In this cross-sectional study, a population-based survey was conducted between February and April 2023 among English-speaking US adults aged 18 years or older recruited and surveyed through the Qualtrics panel service, with oversampling among people with annual household incomes less than $50 000. Data were analyzed from March 18 to November 9, 2025. Exposures: Nutrition security status and barriers to nutrition security, assessed through the Nutrition Security Screener. Main Outcomes and Measures: Primary outcomes were health conditions: type 2 diabetes, obesity, heart disease, high blood pressure, high cholesterol, stroke, and cancer. Independent variables were nutrition security barriers. Covariates included age, gender, race, ethnicity, educational attainment, annual household income, and food security status. Multivariable regressions with health condition outcomes were stratified by nutrition security status. Results: Of 3009 survey respondents, 3000 provided information on barriers to nutrition security and were included in analyses (1518 [50.6%] were female; 1983 [66.1%] were between ages 18 and 49 years). A mean (SD) of 7.8 (3.0) barriers were reported among participants with nutrition insecurity compared with 4.4 (3.2) among those who had nutrition security. Most barriers were only modestly intercorrelated (mean [SD] r = 0.45 [0.13]), with the highest correlation (r = 0.86) between insufficient time to shop and to cook. Barriers clustered into 2 factors that explained 61.4% of the variance. Black adults had higher odds of transportation barriers (adjusted odds ratio [AOR], 1.56 [95% CI, 1.17-2.08]) than White adults, whereas Hispanic/Latinx adults had higher odds of nutrition assistance barriers (AOR, 1.65 [95% CI, 1.26-2.17]) than those who were non-Hispanic/Latinx. A higher number of barriers (per unit increase [range, 0-13]) was associated with higher prevalence of diabetes (AOR, 1.10 [95% CI, 1.04-1.16]), heart disease (AOR, 1.16 [95% CI, 1.07-1.24]), and obesity (AOR, 1.09 [95% CI, 1.04-1.14]) among adults with nutrition security and of heart disease (AOR, 1.12 [95% CI, 1.03-1.22]) and stroke (AOR, 1.12 [95% CI, 1.02-1.25]) among those with nutrition insecurity. Conclusions and Relevance: In this study among US adults, barriers to nutrition security were interrelated, varied across demographics, and were associated with disease conditions. These findings provide new insights into how barriers to healthy eating can be assessed, informing more targeted clinical, public health, and policy initiatives.