Abstract

Amartya Sen’s work has contributed to shifting our focus from food availability to food access and utilisation, together called ‘nutritional capability’. Existing food insecurity instruments have been informed partially by the capability approach, but remain focused on material deprivation and its economic sub-dimensions. This narrow focus has become problematic, particularly in high-income countries, where material deprivation is largely overcome and food poverty manifests itself differently from that in low-income countries. Food poverty in high-income countries should thus be approached from a ‘food capability’ perspective that fully recognises the multidimensionality of eating lives and the multiple factors that affect their dietary standards. To demonstrate the usefulness of this perspective, the Alkire-Foster method for multidimensional food poverty was utilised to analyse food poverty in Japan. The Alkire-Foster measure has a dual cut-off approach and its adapted method can produce a multidimensional food poverty index by setting reasonable food deprivation and poverty thresholds. The national data used for empirical demonstration was obtained from a web-based questionnaire conducted in Japan, to which 973 participants (aged 20–60 years) responded. The measurement identified a 20.6% food-poor population and inequalities in food capabilities among subgroups. Although economic deprivation was tightly linked to food poverty, the results suggested that gender- and age-based inequalities were larger than socioeconomic status-based ones, which reflected much wider societal problems in Japan than growing economic poverty, such as gender inequality and population ageing. The proposed measurement is effective for monitoring food policy impacts and complementing existing food insecurity assessment tools. The results will be useful for promoting social debate about what the minimal dietary standard should be in high-income societies.