Fruit and Vegetable Intake and Psychological Resilience Among U.S. Adults: A Cross-Sectional Analysis of BRFSS 2023 Data

Document Type : Research Paper

Author

Student Research Committee, Semnan University of Medical Sciences, Semnan, Iran

Abstract

Psychological resilience, the ability to adapt to adversity and maintain emotional well-being, protects against mental health challenges. This study investigates its association with fruit and vegetable intake among U.S. adults using 2023 Behavioral Risk Factor Surveillance System (BRFSS) data. Daily fruit and vegetable consumption (grams/day) was estimated from frequency responses, assuming 1.5 servings (135 grams) per instance. Resilience was assessed using a composite index based on poor mental health days (_MENTHLTH ≤5 for high resilience) and emotional support (_EMTSUPP 1-2 for high), categorized as high, moderate, or low. Descriptive statistics, t-tests, ANOVA, and chi-square tests were used, with multivariable regressions adjusting for confounders (income, education, smoking). The high-resilience group consumed 420 grams/day (SD=115), compared to 355 grams/day (SD=105) in the low-resilience group (p<0.01, Cohen’s d=0.58). Sixty-seven percent of high-resilience individuals met the WHO ≥400 grams/day recommendation, versus 46% in the low-resilience group (p<0.001). Women and younger adults (18-24 years) in high-resilience groups had higher intakes (p<0.05). Multivariable logistic regression showed higher intake was associated with high resilience (OR=1.45, p<0.01). These findings suggest that nutrient-dense diets may enhance resilience, though longitudinal studies are needed to confirm causality and explore mechanisms like the gut-brain axis.

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Articles in Press, Accepted Manuscript
Available Online from 06 September 2025
  • Receive Date: 30 April 2025
  • Revise Date: 05 September 2025
  • Accept Date: 06 September 2025