Since opening its first shop in Chicago in 1977, Potbelly has expanded to neighborhoods across the country – with more than 425 shops in the United States including more than 80 franchised shops in the United States. For more information, please visit www.potbelly.com.

Potbelly has handwritten messages scrawled inside all the stores, only these aren't the kind that direct you to the next Illuminati meeting. They simply added a "P" and "H" to each location, in reference to pigs and hogs. As the company's chairman Bryant Keil explains it, "Pigs get fat, and hogs get slaughtered.

Although most are high in calories and sodium, you can get a serving of vegetables and a hearty portion of protein in many of the salads and sandwiches. Soups, such as the garden vegetable, tomato, and chicken noodle, contain little calories and fat, and they make for a nutritious, vitamin-rich side.