Building a rapport with someone on a first date may be as simple as eating the same food as them, suggests a new study that found that similar food consumption facilitates a sense of closeness and trust between adults.

Researchers from the University of Chicago in the US launched a series of experiments.

"People tend to think that they use logic to make decisions, and they are largely unaware that food preferences can influence their thinking," said Ayelet Fishbach, a professor at the University of Chicago.

"On a very basic level, food can be used strategically to help people work together and build trust," Fishbach said.

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