Why Can't I Eat When I'm Drunk?: The Science Behind Alcohol's Effect on Appetite
                                
                                
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                                    5 min read                                
                            
                                According to the National Institute on Alcohol Abuse and Alcoholism, alcohol impairs brain signals that regulate appetite, making you feel full or even nauseated. This is a major reason why you can't eat when you're drunk, as the body prioritizes processing the toxic ethanol over digesting food.