Add Yahoo as a preferred source to see more of our stories on Google. Man holding a bottle of Subway's Baja Chipotle sauce in a grocery store - The Image Party/Shutterstock There are three major ...

Four Subway sandwiches on a table - Gerardo Mora/Getty Images Any real foodie knows that no two brands of mayonnaise are exactly alike. Sure, the basic ingredients — eggs, oil, acid — may be the same, ...