Food insecurity and substance use among young adults in the United States

The purpose of this study was to examine the association between food insecurity and substance use among young adults aged 18-25 in the U.S.

A cross-sectional online survey was completed by a diverse sample of 1024 young adults (50.2 % female; 62 % non-white; m age = 21.7[SD = 2.26]) between January-April 2022. Logistic regression analyses were used to examine the association between food insecurity and current cigarette use, Electronic Nicotine Delivery System (ENDS) use, cannabis use, alcohol use, and binge drinking controlling for socio-demographic and economic factors, mental health, and experiences of discrimination.

Nearly 70 % of participants reported being food insecure over the past year. Substance use was also common: 45.9 % of participants reported current cigarette use, 50.9 % ENDS use, 57 % cannabis use, 65.9 % alcohol use, and 50.4 % engaged in binge drinking in the past two weeks. Being food insecure was associated with greater odds of cigarette use (OR = 2.49, 95 % CI = [1.77, 3.50]), ENDS use (OR = 2.18, 95 % CI = [1.58, 3.01]), cannabis use (OR = 1.73, 95 % CI = [1.26, 2.37]), alcohol use (OR = 1.60, 95 % CI = [1.16, 2.19]) and binge drinking (OR = 1.98, 95 % CI = [1.44, 2.72]), controlling for all other factors.

Food insecurity may serve as an important indicator of substance use among young adults. Practitioners should consider screening for food insecurity, providing information about food access, and developing interventions to address food insecurity among the young adults with whom they work. Future research should examine these associations prospectively to better understand how food insecurity may contribute to the initiation and/or escalation of substance use.