This paper aims to review the major food security issues in Bangladesh, with a brief reference to its past trend in agricultural output, constraints, and challenges in the coming decades. Food security relates directly to nutrition and health of a population which consequently influences a nation's socio-economic status. Despite Bangladesh has changed its status from a country with chronic food shortages to a self-sufficient one, it still faces food-security challenges. Few non-agricultural factors are identified as equally responsible for aggravating the food insecurity scenario. Since its independence in 1971, the country has constantly been facing issues like high population growth, political unrest, natural disasters which are contributing to food insecurity. Though industrialization is the order of the modern economy, agriculture remains the lifeblood of food security, especially for predominantly agrarian economies like Bangladesh. And this truth must be emphasized and implemented accordingly so that the predicted food crisis in near future can be successfully avoided. This article aims to review the performance of different agricultural sectors and to identify major setbacks to achieving food security in Bangladesh. This study is based on previously published researches on various food security issues in the context of Bangladesh.