Is it bad to eat junk food while sick?
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                According to researchers at the University of Bonn, the immune system reacts similarly to a high-fat, high-calorie diet as it does to a bacterial infection. This raises a key question for many people feeling under the weather: is it bad to eat junk food while sick? The answer lies in how these foods affect your body's ability to fight off illness and recover efficiently.