A serving size of lunch meat is 2 ounces. Delis serve sandwiches with 6 or more ounces of meat. Two ounces of prepackaged cold cuts is approximately two slices.
The recommended size serving of sandwich meat adds 50 to 70 calories to a sandwich. Adding a single slice of cheese to a sandwich adds over 100 calories. Individuals watching their weight benefit from adding a third slice of meat for protein while eliminating the cheese. While many processed meats are low in fat and calories, they are high in sodium. A 2-ounce serving of low-sodium honey ham contains 300 milligrams of sodium.