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Obesity Battle: Shopping Cart Redesign Could Help Consumers

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Could a simple change in the design of shopping carts help people make better decisions about the food they buy? That’s what researchers at New Mexico State University (NMSU) are studying and the results may surprise you. Shoppers who had one of the special carts bought 102 percent more fruits and veggies than those who had regular carts.

“Customers are bombarded with literally thousands of messages about food as soon as they walk into the grocery store,” said Collin Payne, an assistant professor in marketing at NMSU’s College of Business. “Food manufacturers have tremendous amounts of money to research what influences people to buy their products. We’re looking for tools that will help consumers, if they want to make healthier decisions. Right now, there are more tools helping them make less healthy decisions.”

One of the first shopping carts was introduced in 1937, the invention of Sylvan Goldman, owner of a supermarket chain in Oklahoma City. They didn’t catch on right away: men found them effeminate and women thought they suggested a baby carriage. After the inventor hired models to push his invention around his store and demonstrate their utility, as well as greeters to explain their use, shopping carts became extremely popular and Goldman became a multimillionaire. Over the years modifications have been made to the carts, including making them larger because consumers buy more when using larger carts. Today shopping carts are found in most grocery stores and big box stores.

The NMSU study was pretty straight forward. The research team simply used duct tape to put a yellow line across the width of shopping carts with a sign designating one side of the cart for fruits and vegetables and the other for everything else.

“We showed a 102 percent increase in people buying fruits and vegetables, without showing a decrease in supermarket profitability,” he said. “Allowing retailers such as supermarkets to maintain their profits is important in achieving buy-in for these kinds of tools. Whether the profits of food manufacturers are affected remains to be seen.”

Payne said his findings are significant because other studies have had little impact on the amount of healthy food purchased. A previous study commissioned by a food retailer in the Northeastern U.S. looked at rating foods throughout the store, giving them between one and three stars, depending on how healthy they were. Another tried to give food a numerical rating between zero and 100, again depending on its nutritional value.

Payne said these studies were generally found not to increase healthier purchases, possibly because shoppers would simply compare items within a food category rather than across categories – for example choosing a marginally healthier candy bar over another instead of skipping the candy bar all together in favor of an apple.

“Consumers need better tools,” Payne said. “There’s been such a dramatic decrease in the consumption of fruits and vegetables over the past few decades, which corresponds to an increase in certain cancers, diabetes and other ailments.”
Payne will continue his experiments next year, further testing exactly where the yellow line should be placed to have the best impact for manufacturer, retailer and consumer. He’ll also look at whether dividing a cart into additional categories proves even more effective.

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We value and respect our HERWriters' experiences, but everyone is different. Many of our writers are speaking from personal experience, and what's worked for them may not work for you. Their articles are not a substitute for medical advice, although we hope you can gain knowledge from their insight.

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