Assessing the Cost of Healthy and Unhealthy Diets: A Systematic Review of Methods (2022)

This systematic review evaluates methodologies for measuring the cost of healthy and unhealthy diets in high-income countries, examining over 100 studies primarily from the USA and Australia. It highlights the challenges in standardizing food pricing instruments, noting that most studies use "food basket" methods. Findings underscore the need for uniform, adaptable tools that reflect socio-cultural contexts and enable longitudinal data collection to inform food affordability interventions.