Moving fresh produce to supermarket entrances can nudge shoppers toward healthier diets and increase fruit and vegetable sales. According to the WRAPPED study published in Public Health Research, this placement strategy improved women’s dietary quality over six months, though it also led to higher levels of household food waste.
Can supermarket layouts actually improve our health?
It’s a question that’s increasingly at the center of public health debates. For years, researchers have looked at how retail environments influence what ends up in our shopping baskets. Because healthy foods are often more than twice as expensive per calorie as unhealthy options, the way stores are designed can play a massive role in dietary habits.
In England, legislation introduced in October 2022 began prohibiting the placement of foods high in fat, salt, and sugar (HFSS) at store entrances, checkouts, and aisle ends in chain retail outlets. The WRAPPED study, led by researchers including Christina Vogel and Sarah Crozier, took this a step further by testing whether expanding fresh produce sections near entrances in discount supermarkets could actually “nudge” people toward better nutrition.
What were the actual findings of the WRAPPED study?
The study tracked 580 shoppers across 36 discount supermarkets in England. Researchers compared “intervention” stores—where fresh produce sections were expanded and moved near the entrance—against “control” stores that kept their usual layouts.
The results showed that intervention stores saw greater increases in fresh fruit and vegetable sales, particularly in the early stages after the changes were made. While these effects tended to diminish over time, the impact on purchasing was notable. According to the report in Public Health Research, the intervention had a positive effect on women’s dietary quality at the six-month follow-up, though the study noted this effect was small.
Interestingly, the study found that these changes didn’t force shoppers to spend more money or spend more time in the store. At the individual level, the net effect after six months was positive without increasing overall grocery expenditure.
Key Data Points from the Trial:
- Sample Size: 580 shoppers participated in the study.
- Store Count: 36 discount supermarkets across England.
- Purchasing Data: 475 participants provided specific purchasing details.
- Dietary Patterns: 360 participants provided data on waste and diet.
Why did household food waste increase?
There’s a catch to the “healthy nudge” strategy. While people were buying more produce, they weren’t necessarily eating all of it. The WRAPPED study found that at the six-month mark, participants in the intervention stores had a greater frequency of household fruit and vegetable waste.
The data suggests that vegetable waste increased more clearly than fruit waste. This highlights a critical challenge for future food policy: if we successfully nudge people to buy more fresh items, we must also provide the tools or education to ensure those items are consumed rather than thrown away.
How will this influence future UK food laws?
The findings offer a roadmap for refining the UK Food (Promotion and Placement) Regulations. The researchers suggest that requiring a fresh produce section near store entrances could enhance the health impact of retail environments.
As discount supermarkets are frequently used by disadvantaged families and those with poor dietary behaviors, these placement strategies could become a vital tool for reducing noncommunicable diseases. The trend is moving toward more intentional store design, where the “path of least resistance” leads shoppers toward nutritional value rather than processed snacks.
Frequently Asked Questions
Does moving vegetables to the front increase my grocery bill?
According to the WRAPPED study, the intervention had no increase in shopping expenditure at the individual level.
Which group saw the most dietary improvement?
The study observed a positive effect on women’s dietary quality at the six-month follow-up, though the effect was described as small.
Is more produce always better for the environment?
Not necessarily. The study found that increased fresh produce purchases were linked to a higher frequency of household fruit and vegetable waste at the six-month mark.
What do you think? Should supermarkets be required by law to place fresh produce at their entrances? Share your thoughts in the comments below or subscribe to our newsletter for more deep dives into food policy and retail trends.
