Why drinking alcohol gives you the munchies
Friday, November 1, 2019 IST
Food and alcohol may share similar circuits in the brain.
Closing time at the bars usually sends scores of intoxicated men and women to the nearest diner or fast-food restaurant. In a new study, researchers at the Pennsylvania State University College of Medicine investigated what makes alcohol and high-fat junk food go so well together, finding that this union seems to be mediated by a shared brain circuit in the brain.
“Obesity and alcoholism, two of the most common chronic disorders in the United States, may be behaviorally linked as binge intake of palatable diets, such as diets high in fat, and binge alcohol intake may utilize the same neurocircuitry,” the researchers wrote.
The new findings agree with previous studies which found that alcohol consumption affects the same areas of the brain that control overeating.
For their study, the researchers experimented with three groups of adult male mice, each with different eating and drinking patterns. One group had unlimited access to a high-fat diet and had limited access to drinking water mixed with alcohol; the second group ate normal rodent food and had limited access to the same kind of alcoholic beverage as the first group; the third group had limited access to both high-fat foot and alcohol beverage. Over the course of eight weeks, the ratio of alcohol to drinking water was incrementally increased from 10% to 20%. Throughout the trial, all the animals were offered access to drinking water.
Animals in the third group, also known as the “binge diet”, had a weight-gain and weight-loss cycle associated with binge eating and drank more alcohol than water during their access period. The other groups consumed less alcohol than the binge diet group.
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