A new experimental study suggests that where foods are placed inside a grocery store may influence what people buy, and potentially what they eat. Researchers found that moving fruits and vegetables to the front of stores led to a measurable increase in purchases and was linked to small improvements in diet quality among some shoppers.
That does not mean store layout alone improves health outcomes. The study measured purchasing patterns and short-term dietary changes, not long-term eating habits or disease risk. Still, it highlights how small environmental changes can shape everyday food decisions.
The study, published in PLOS Medicine, was a matched-controlled cluster trial conducted in 36 discount supermarkets in England. Half of the stores moved their fruit and vegetable sections to the entrance, while the others kept their usual layout. Researchers tracked store-level sales data and followed a group of 580 women shoppers over time to assess dietary changes.
Stores that moved produce to the entrance saw an increase of about 2,525 additional portions of fruits and vegetables purchased per store per week. This increase occurred during a period when overall fruit and vegetable purchases were declining, suggesting the change in placement played a meaningful role.
Among the subset of women who participated in dietary tracking, those exposed to the new layout showed modest improvements in diet quality after six months. The effect appeared somewhat stronger among shoppers who relied more heavily on those stores and among those with lower levels of formal education.
“Placing fruit and vegetables at the entrances of discount supermarkets increased fresh fruit and vegetable sales,” said Professor Christina Vogel, lead author of the study.
For U.S. readers, the concept is straightforward. Grocery stores are designed to influence behavior, from checkout displays to aisle end promotions. This study suggests that positioning healthier options in high-visibility areas may shift purchasing patterns without requiring shoppers to change their intentions.
The findings reflect real-world behavior but still have limits. The study took place in one supermarket chain in England, and dietary improvements were measured in a smaller subgroup rather than across all shoppers. It also cannot determine whether these changes lead to sustained dietary improvements or better long-term health outcomes.
The results point to a broader idea supported by behavioral science: food choices are shaped not just by knowledge or motivation, but by the environments where decisions are made. In this case, what shoppers see first may quietly influence what ends up in their cart.
This study was funded by the NIHR Public Health Research Programme and the NIHR Southampton Biomedical Research Centre.