Subway is the single largest chain restaurant in the world. That means you’ve probably eaten there at some point in your lifetime and if you are like me could possibly have 10 of these restaurants within a 1 mile radius of your house. But is eating at America’s favorite fast food chain really eating real food? Subway would certainly like you to think so. With their slogan “Eat Fresh,” marketing with avocados and a guy who lost hundreds of pounds eating their famous sub sandwiches, it’s easy to get duped.