Positioning of snacks near supermarket tills increases their sales, research shows.
Removing sweets and crisps from supermarket checkouts could dramatically cut the amount of unhealthy snacks bought to eat on the go, say researchers.
Under pressure to act because of rising childhood obesity, some supermarkets have moved snacks away from the till, where people queuing – often with children – are tempted to put them in the shopping basket as they wait their turn.
Research shows the positioning of products at the checkout or on the end of aisles increases their sales. The findings suggest that many families who stop adding sweets and crisps at the counter appear not to buy them at all.
The government-funded study, published in the journal Plos Medicine,found that 76% fewer annual purchases of sugary confectionery and crisps were bought and eaten on the go from supermarkets that do not stock them at checkouts than at those that do.
The study used commercially held data from 7,500 shoppers who recorded food bought and eaten on the go during 2016-17 from supermarkets with and without checkout food policies. On the go purchases are often impulsive and can be the result of children pestering their parents.
The researchers, from Cambridge, Stirling and Newcastle universities, also looked at how purchases of less healthy, common checkout foods that were brought home – rather than eaten on the go – changed after the implementation of checkout policies. They used data from more than 30,000 UK households from 12 months before to 12 months after implementation.
They found that removing the unhealthy snacks from the checkout was associated with an immediate 17% reduction in purchases. After a year, shoppers were still purchasing 15% fewer of the items compared with when no policy was in place.
Dr Jean Adams, a senior lecturer in dietary public health research at the University of Cambridge, said: “It may seem obvious that removing unhealthy food options from the checkout would reduce the amount that people buy, but it is evidence such as this that helps build the case for government interventions to improve unhealthy behaviours.”