Why do I never feel full after McDonald's? The scientific reasons revealed
                                
                                
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                                    4 min read                                
                            
                                According to a 2018 study, highly processed fast foods can activate the brain's reward centers and disrupt natural satiety signals, which is a key reason why you might feel like you never feel full after McDonald's. This phenomenon isn't just about willpower; it's a complex interplay of ingredients and biological responses.