Can I Eat Duke's Mayo on the Carnivore Diet?
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                According to Duke's official website, its Real Mayonnaise contains soybean oil, a plant-based ingredient that is strictly prohibited on the carnivore diet. For those following a strict all-animal-based eating plan, this means store-bought Duke's is off the table, despite being sugar-free.