vegetables-sylvalis-morguefileA simple piece of duct tape can double the amount of healthy food shoppers buy at the grocery store, a marketing professor has discovered.

Collin Payne of New Mexico State University and his team stretched some yellow tape across the middle of a shopping cart, with a sign telling shoppers to put fruits and vegetables in one half and the other groceries in the other.

“We showed a 102 per cent increase in people buying fruits and vegetables, without showing a decrease in supermarket profitability,” Payne said.

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