Pepperoni and salami are different sausages that are used mainly in pizza and other foodstuffs. Though both pepperoni and salami are made from pork, they have slight differences. “Salami” is a trademark sausage of Italy. It was from Italy that the sausage travelled to other parts of the world. It is mainly made from pork, chopped beef, veal, and poultry. Salami is mainly used during lunchtime. This sausage is mainly used as a pizza topping as it is spicy. Like salami, this sausage also comes with the same nutritional value.