This review explores the complex relationship between food security and mental health, emphasizing their interconnectedness and the impact of food insecurity on psychological well-being. Food insecurity is a significant public health issue, affecting mental health through stress, anxiety, depression, and cognitive function. The review highlights the role of socioeconomic factors, access to nutritious food, and societal inequalities in shaping this relationship. It also discusses the importance of integrating food security into mental health strategies, suggesting interventions such as sustainable farming, urban agriculture, and digital mental health services to improve both food security and mental wellbeing. The study underscores the need for collaborative, interdisciplinary efforts and systemic reforms to address these challenges. Case studies from conflict zones like Palestine, the Democratic Republic of Congo, and Afghanistan/Yemen illustrate the severe mental health impacts of food insecurity. The review also emphasizes the role of nutrition in mental health, noting that adequate food intake is crucial for cognitive development and emotional stability, particularly in children. It calls for policies that address food insecurity as a social determinant of mental health, promoting equitable access to nutritious food and mental health support. The study concludes that addressing food insecurity is essential for achieving Sustainable Development Goals 2 and 3, and that comprehensive interventions are needed to improve global wellbeing.This review explores the complex relationship between food security and mental health, emphasizing their interconnectedness and the impact of food insecurity on psychological well-being. Food insecurity is a significant public health issue, affecting mental health through stress, anxiety, depression, and cognitive function. The review highlights the role of socioeconomic factors, access to nutritious food, and societal inequalities in shaping this relationship. It also discusses the importance of integrating food security into mental health strategies, suggesting interventions such as sustainable farming, urban agriculture, and digital mental health services to improve both food security and mental wellbeing. The study underscores the need for collaborative, interdisciplinary efforts and systemic reforms to address these challenges. Case studies from conflict zones like Palestine, the Democratic Republic of Congo, and Afghanistan/Yemen illustrate the severe mental health impacts of food insecurity. The review also emphasizes the role of nutrition in mental health, noting that adequate food intake is crucial for cognitive development and emotional stability, particularly in children. It calls for policies that address food insecurity as a social determinant of mental health, promoting equitable access to nutritious food and mental health support. The study concludes that addressing food insecurity is essential for achieving Sustainable Development Goals 2 and 3, and that comprehensive interventions are needed to improve global wellbeing.