** FILE ** In this March 8, 2010, file photo, the sandwich board at the Panera store in Brookline, Mass., shows the calorie count for each item. Diners will have to wait a little longer to find calorie counts on most restaurant chain menus, in supermarkets and on vending machines. (AP Photo/Charles Krupa, File)

Photo by: Charles Krupa

** FILE ** In this March 8, 2010, file photo, the sandwich board at the Panera store in Brookline, Mass., shows the calorie count for each item. Diners will have to wait a little longer to find calorie counts on most restaurant chain menus, in supermarkets and on vending machines. (AP Photo/Charles Krupa, File)