Roast Beef came in second because most sandwich shops are using lean meat. Everyone gets some mayo in a chicken salad sandwich, and mayo has a lot of saturated fat. A corned beef sandwich is like a quarter pounder with and 1,200 mg of sodium sprinkled on top. Did you think a tuna salad sandwich would be a smart choice? It is loaded with 716 calories, two-thirds of day's fat, and half a day's sodium. If you have mayo with it you end up with about as much fat as 80 potato chips. A turkey club is about as fatty as a Burger King Whopper.

Another popular place to eat is Subway. A six inch sub has lower fat than its sandwich counterpart. Turkey and roast beef subs are two of the least fatty. Subway's Veggies & Cheese has much less fat than a regular "vegetarian" sandwich. If you choose a six-inch Subway BMT - named after one of New York City's subway lines - you might as well have eaten a Big Mac.