Unhealthy processed food

A new poll shows college basketball fans like to add spicy condiments to pizza, deli meat, cookies and ice cream. (© beats_ - stock.adobe.com)

WAGENINGEN, Netherlands — If you’ve ever snuck into your kitchen for a midnight snack, you probably know exactly where all the sweet and tasty treats are hidden with your eyes closed. Researchers in the Netherlands say this isn’t just about good memory, the human brain may actually be wired to hunt down high-calorie food. Their study finds humans are significantly better at remembering where junk foods are kept than they are with healthier options.

A team from Wageningen University & Research believes the human brain has evolved to focus on memorizing where high-calorie foods are located. Study authors theorize this allowed our hunter-gatherer ancestors to survive in tough environments with few food options.

The study tested 512 participants who were put through a sort of food-memory maze. Researchers had the group follow a fixed route through a room where eight foods or food-scented pads were strategically placed.

As each participant walked through the maze, they either tasted the food or smelled the pads. These tasty options ranged from apples and cucumbers to potato chips and chocolate brownies. The group was also asked to rate how much they like each food they encountered. Researchers then gave the volunteers a surprise quiz on where these snacks were located.

Junk food more appealing to our mind, too

The results reveal the group was 27 percent more accurate at picking the right locations of high-calorie foods than low-calorie options. Participants were even better with food scents, spotting high-calorie pads with 28 percent more accuracy than low-calorie ones.

Researchers report that the results weren’t affected by whether the high-calorie snack was sweet or savory. It also didn’t seem to matter if the participants liked the foods or not. Overall, people were 2.5 times (or 243 percent) better at memorizing where actual food was compared to food-scented pads.

Is there a downside to this skill?

While this ability likely served humans well in the distant past, the study suggests it could lead to problems today. Researchers hint that the memory bias towards high-calorie foods can create dieting issues for many people.

They add that brains which can resist the urge to hunt down sweeter snacks will likely avoid these dieting problems. Researchers are now looking at how the high-calorie memory bias affects present day eating habits.

The study appears in Scientific Reports.

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About Chris Melore

Chris Melore has been a writer, researcher, editor, and producer in the New York-area since 2006. He won a local Emmy award for his work in sports television in 2011.

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