Researchers from the University of Michigan in the USA examined the effects of high sugar consumption in a study on fruit flies. Based on the similarity of neural networks in the sugar-tasting processes of fruit flies and humans, the researchers fed the fruit flies high-sugar foods. It was observed that the dopamine-producing neural activities of fruit flies that consumed high sugar were delayed and decreased.

Monica Dus, who led the study, said, “We noticed that on a high sugar diet, fruit flies’ dopamine-related nerve cells are less active. Because high sugar consumption reduces the intensity of the sweetness signal from the mouth.

Explaining that animals use this feedback information from dopamine to predict how much food they will eat, Dus said, “This process is interrupted when fruit flies are on a high sugar diet.” said.

Dus said that flies consume more nutrients than they need because their nerve cells register their activity less than normal.

Stating that dopamine-producing nerve cells have a role in stimulating the brain in the process of processing the sweetness of food, Dus said, “If that process is not there, you should wait for other clues to report that you are full. By then, you’re eating too many cookies.”

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