At like hunger, which is a long term

At the Food and Agriculture Organization(FAO) Rome World Food Summit in 1996, food security was defined as a condition that exists when “all people, at all times have physical and economic access to sufficient, safe and nutritious food that meets their dietary needs and food preferences for an active and healthy life” (Escamilla, 2017). The food security is also linked with nutrition security which produced from the combination between health care access security, household food security, and access to other basic human needs including sufficient sanitation. Therefor, the important aspects that household food security should have are the food access, the food availability, and the food utilization. 
The food security is opposite with food insecurity or household food insecurity(HFI) as the result of poverty, poor health of the household member, and less than the higher standard or quality of livelihood and household management strategies. And it resulting strong triggers that may increase the risk of poor mental, social, and psycho-emotional development of individuals across the life course through different pathway.
Also food insecurity have impact to social unrest, health care, and obstruct development of a country and their people, because it increase hunger and malnutrition. Moreover, this day a large share of the agricultural produce in developing countries does not experience local processing, mean that implying substantial post-harvest losses and food waste. 
The global food security challenge is straightforward: “by 2050, the world must feed 9 billion people. The demand for food will be 60% greater than it is today. A central issue like hunger, which is a long term development priority, remains an everyday battle for almost 795 million people worldwide. While this number is 216 million less than in 1990-1992, according to UN statistics, hunger kills more people every year than malaria, AIDS and tuberculosis combined” (Duran, 2015).