The Role of Family Cohesion and Health Literacy in Parents’ and Adolescents’ Health: A Systematic Review

This systematic review explores the role of family cohesion and health literacy in shaping the physical, mental, and behavioral health of parents and adolescents. Family cohesion and health literacy are recognized social determinants that influence communication, shared decision-making, and engagement in preventive health behaviors. Following PRISMA 2021 guidelines, a comprehensive search across major databases identified 16 eligible studies meeting the inclusion criteria between 2010 and 2025. The findings indicate that higher levels of family cohesion promote healthier behaviors, strengthen emotional regulation, and enhance adolescents’ perceived well-being, while also increasing parental involvement in health-related decisions. Health literacy emerged as a key explanatory and contextual factor in the association between family cohesion and health outcomes. However, socioeconomic disadvantages—such as low income, limited access to healthcare, and lower parental education—were shown to weaken these protective pathways, creating disparities in health outcomes. Cultural and contextual factors also influenced the effectiveness of health literacy interventions. Overall, the review underscores the relevance of family-centered, culturally tailored public health strategies that simultaneously strengthen family cohesion and health literacy to support equitable health outcomes for parents and adolescents.