Global food security in the last decade has been a topic around many international agencies, organizations, and governments. Global food security can have a broader or a narrower definition, depending on the source. Nevertheless, most of the authors agree that it has become one of the 21st century’s greatest challenges. This paper addresses global food security in terms of (1) availability, (2) access, (3) utilization, and (4) stability of food. These are the dimensions that Food and Agriculture Organization of the United Nations (FAO) has established for the definition of food security. This paper also gives an overview of the recent Global Food Security Index (GFSI) created by the Economist Intelligence Unit (2013). It is observed that emerging countries play a significant role in global food availability and there is a need for international organizations, governments, academic institutions, private enterprises, and the population itself to work together in order to face the challenge of feeding the world.