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The dry, puckering sensation you get from dark chocolate, red wine, tea or berries could actually beactivating your brainin a way similar to exercise, according to a new study.
New research from Japan suggests that flavanols — plant compounds found in these foods — may stimulate the brain not by being absorbed into the bloodstream, but by triggering a sensory response tied to their bitter taste.
“The key finding of this experiment is that it first demonstrated how flavanol intake stimulation — likely the bitter taste — is transmitted to the central nervous system, triggering a stress response reaction that enhances short-term memory and produces beneficial effects on the circulatory system,�
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“It was surprising that flavanol’s brain activity-enhancing effect occurred at a very low dose.”
Flavanols found in cocoa, red wine and berries may stimulate sensory nerves that enhance focus and alertness.(iStock)
In experiments on mice, a single dose of flavanols increasedspontaneous activity and improved performanceon memory tests, according to the study published in Current Research in Food Science.
Researchers also observed rapid activation of brain regions involved in attention, arousal and stress regulation.
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Because very little of the flavanols people consume actually enter the bloodstream, researchers believe they may instead influence the brain and heart by stimulating sensory nerves.
The researchers describe the concept as part of an emerging field known as sensory nutrition, the idea that the taste and physical sensations of food may directly regulate biological functions.This could eventually lead to new types of foods that combine appealing taste and beneficial physiological effects.
Berries are a natural source of flavanols, plant compounds being studied for potential cognitive and cardiovascular benefits.(iStock)
The response resembles what happens during mild exercise, which is a temporary activation of thesympathetic nervous systemsometimes described as a fight-or-flight response.This type of short-term stress can sharpen focus and alertness.
The brain’s response to flavanols resembles the temporary “fight-or-flight” activation seen during mild exercise.(iStock)
Larger, human studies are needed to determine whether the effects seen in mice also occur in people.
More data is needed before foods like dark chocolate can be recommended, especially because calories, sugar and fat could outweigh the benefits, Moon said. TEST YOURSELF WITH OUR LATEST LIFESTYLE QUIZ Still, Osakabe noted that previous long-term human studies on cocoa flavanols have suggested cardiovascular and cognitive benefits.For now, she recommends abalanced, plant-forward diet. Experts say more research is needed before flavanol-rich foods can be recommended specifically for cognitive benefits.(iStock) “I believe consuming plant-based foods like cocoa, berries and red wine, along with fruits and vegetables, can help maintain health,” she said. onelink.me/xLDS?pid=AppArticleLink&af_web_dp=https%3A%2F%2Fwww. Major health organizations say that if adults choose to drink alcohol, they should do so in moderation — up to one drink per day for women and two for men — and emphasize that no amount of alcohol is completely risk-free. �s Melissa Rudy contributed to this report.
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