Food Environment Influences on Obesity and Dietary Behavior

The food environment encompasses the availability, affordability and marketing of foods within the places people live, work and travel. Characteristics such as the density of fast-food outlets, proximity to supermarkets and pricing structures interact to create landscapes that can promote energy-dense, nutrient-poor diets. Research has evolved from static measures around home neighbourhoods to dynamic, mobility-informed assessments capturing exposures along commuting routes and in workplace settings. High exposure to calorie-rich foods is linked to greater body mass index (BMI) and cardiometabolic risk, whereas ready access to healthier options supports improved dietary patterns. Socioeconomic inequalities shape these environments, with more deprived areas often hosting a higher concentration of outlets selling processed and fast foods. Policy measures—ranging from zoning restrictions around schools to incentives for healthy retailers—demonstrate potential to reshape local foodscapes, reduce obesity prevalence and alleviate healthcare burdens at population level.

Research from Nature Portfolio

Recent studies have advanced composite indices that integrate human activity and retail exposures to better predict diet-related disease. A retail food activity index, derived from large-scale GPS tracking and visit records to various food outlets, shows strong associations with the prevalence of obesity, diabetes and cardiovascular conditions. By weighting outlet visits according to healthfulness and accounting for movement patterns across census tracts, this index outperforms traditional static outlet counts and offers a scalable tool for guiding targeted public health interventions and urban planning policies.

Food Environment Influences on Obesity and Dietary Behavior publication trend

The graph below shows the total number of articles in food environment influences on obesity and dietary behavior across all publications each year (not limited to Nature Index journals).

Technical terms

Food environment: The physical, economic and policy context in which individuals encounter, obtain and consume foods.

Obesogenic environment: A setting that encourages high energy intake and inactivity, facilitating weight gain.

Retail Food Activity Index (RFAI): A composite metric combining visit frequency and outlet healthfulness from mobility data to quantify individual exposure.

Takeaway management zone: A designated geographic area where the establishment of new takeaway outlets is restricted to limit access to energy-dense foods.

References

1. Population mobility data provides meaningful indicators of fast food intake and diet-related diseases in diverse populations. npj Digital Medicine (2023).
2. Integrating human activity into food environments can better predict cardiometabolic diseases in the United States. Nature Communications (2023).
3. Characterising food environment exposure at home, at work, and along commuting journeys using data on adults in the UK. International Journal of Behavioral Nutrition and Physical Activity (2013).
4. Area deprivation and the food environment over time: A repeated cross-sectional study on takeaway outlet density and supermarket presence in Norfolk, UK, 1990–2008. Health & Place (2015).
5. Health impacts of takeaway management zones around schools in six different local authorities across England: a public health modelling study using PRIMEtime. BMC Medicine (2024).
6. Effects of changes in residential fast-food outlet exposure on Body Mass Index change: longitudinal evidence from 92,211 Lifelines participants. International Journal of Behavioral Nutrition and Physical Activity (2024).