Since the system is, at a minimum, intended to support comparisons across countries and cultures, it will be important to identify domains that are common across locations, situations, and cultures. A cross-cultural analysis of existing, published research identified four domains of household food insecurity that are common across fifteen countries [41]: uncertainty and worry, inadequate quality, inadequate quantity, and social unacceptability. This study also found some additional commonality in subdomains, for instance, social unacceptability generally included unacceptability of means of acquiring food as well as eating foods that are socially unacceptable.