Food Environment Assessment and Measurement Techniques

Food environment assessment encompasses the systematic observation and quantification of the spaces in which people acquire, prepare and consume food. These environments range from large-scale retail outlets and digital grocery platforms to street food venues, food banks and restaurants. Measurement techniques include direct field audits, geospatial mapping, in-store display counts, shelf-space analysis and perceptual surveys. By capturing objective indicators such as availability, price, placement and promotional strategies, alongside subjective perceptions of accessibility and quality, researchers can characterise how physical and economic contexts influence dietary behaviours. Advances in methodologies—integrating mobile data collection, geographic information systems (GIS) and standardised audit instruments—have improved comparability across regions and over time. Such insights inform policy interventions aimed at improving the healthfulness of consumer food environments, from targeted retail zoning to corporate responsibility commitments and community-level programming.

Research from Nature Portfolio

Recent studies have revealed a striking global shift in retail landscapes, with large chain outlets increasingly dominating grocery markets across low-, middle- and high-income countries. Analyses spanning 2009 to 2023 demonstrate rapid growth in digital grocery sales and chain retailer density, coupled with declines in non-chain outlets. These transformations correlate positively with rising obesity prevalence, particularly in South Asia and other lower-income regions. The findings underscore the need to monitor digital and brick-and-mortar retail changes in real time, and to develop targeted strategies that promote equitable access to healthy options as retail environments evolve.

Food Environment Assessment and Measurement Techniques publication trend

The graph below shows the total number of articles in food environment assessment and measurement techniques across all publications each year (not limited to Nature Index journals).

Technical terms

Food environment: The physical, economic, policy and sociocultural contexts that influence people’s dietary behaviours and food choices.

Retail food environment: The subset of the food environment comprising outlets such as supermarkets, grocery stores, convenience stores and digital retailers, including their product assortment, pricing and promotion strategies.

Nutrition Environment Measures Survey (NEMS): A validated audit tool for objectively assessing availability, price, quality and marketing of healthy and less healthy foods in stores and restaurants.

Display counts: A method for quantifying the number and placement of product displays—such as fruits, vegetables or snacks—to characterise in-store marketing influences on consumer behaviour.

Geographic Information System (GIS): A computer-based tool that captures, stores, analyses and visualises spatial and geographic data, used to map the distribution and accessibility of food outlets.

References

1. Global food retail environments are increasingly dominated by large chains and linked to the rising prevalence of obesity. Nature Food (2025).
2. Evidence for initiating food safety policy: An assessment of the quality and safety of donated food at an Australian food bank. Food Policy (2024).
3. Measuring the Food Environment: A Systematic Technique for Characterizing Food Stores Using Display Counts. Journal of Environmental and Public Health (2012).
4. Street Food Stand Availability, Density, and Distribution Across Income Levels in Mexico City. International Journal of Environmental Research and Public Health (2021).