Food Is Life: A Global Call to Address Food Insecurity Through Systems Change

ABSTRACT

Food insecurity is a pressing global public health challenge. Although food is fundamental to survival, health, dignity, and human development, more than 266 million people worldwide experience acute food insecurity. Yet, food insecurity is not confined to regions affected by famine or food scarcity; it is also prevalent in affluent nations and urban centers, where structural inequities constrain access to nutritious foods and opportunities for health and well‐being. Although food and nutrition insecurity are conceptually distinct, the former traditionally emphasizing inadequate or uncertain access to sufficient food and the latter inadequate access to foods that support nutritional needs and health, they frequently intersect in lived experience. Accordingly, this paper adopts an expansive conceptualization of food insecurity encompassing both insufficient food quantity and compromised nutritional quality. Drawing on evidence and community‐engaged perspectives, we frame food insecurity as a multidimensional systems challenge shaped by interconnected economic, social, environmental, healthcare, and policy factors. We examine how food insecurity manifests along a continuum from food scarcity and undernutrition to poor diet quality, unstable access to healthy foods, and diet‐related chronic disease. We also highlight its broader consequences for mental health, child development, educational attainment, and long‐term quality of life. Using a systems lens, we identify five interrelated barriers that sustain food insecurity: economic instability and limited mobility, inadequate data and contextual understanding, fragmented systems and service delivery, infrastructure inequities, and policy misalignment. In response, we propose a framework for action emphasizing economic mobility, evidence‐informed decision‐making, sustainable food systems, cross‐sector collaboration, food–healthcare integration, community engagement, and adaptive policy. Sustainable food security requires moving beyond emergency assistance toward systems‐level transformation grounded in collective accountability, community partnership, and long‐term investment in health, resilience, equity, and opportunity across generations.