How Many Calories Are in a Mayo Packet?
                                
                                
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                                    4 min read                                
                            
                                According to the World Cancer Research Fund, one tablespoon of store-bought mayonnaise contains an average of 90 calories. So, how many calories are in a mayo packet, which is typically smaller in size? The exact amount varies significantly by brand, but many common packets range between 70 and 100 calories, primarily from fat.