This paper examines the different approaches and methodologies for classification of countries in terms of their food and nutrition security conditions. Its objective is to identify a number of country groups and thus provide some guidance about potential policies to address food and nutrition insecurity. Defining the adequate number of groups depends in good measure on the purpose of the exercise, as discussed later. It should be recognized, however, that every country is unique, and therefore policy makers and analysts must make an effort to understand the country and its circumstances when discussing specific policies. This implies considering (1) current economic conditions, (2) the totality of the economic program where the policy in question fits, (3) structural aspects of the national economy and society, (4) the heterogeneity of economic agents, and (5) the world economic environment within which the country is inserted. Many policy and analytical mistakes result from considering policies in isolation without taking into account those five aspects.