Overview: Unhealthy diet is a key modifiable risk factor for obesity and noncommunicable diseases (NCDs). Government policy is placing increasing emphasis on improving unhealthy diets by intervening at the environmental level to influence the behaviours of many people simultaneously.
Most UK families acquire food from supermarkets; consumers’ food choices in the supermarket environment are influenced by a range of factors including the availability and positioning of products. The National Institute of Health Research (NIHR) has funded researchers from the MRC Lifecourse Epidemiology Unit at the University of Southampton to evaluate the impact of product placement in supermarkets on the diets and product sales.
The WRAPPED study is a natural experiment being conducted with Iceland supermarket chain. The intervention will create a healthier store layout.
To date, this study is the largest supermarket trial internationally to assess the health impact of product placement in stores.