Some Pepperoni Fun Facts:

• Although it’s based on an Italian spiced salami, pepperoni is an American invention.
• To be considered pepperoni, the meat must contain both beef and pork.
• A typical mix is 72% Pork meat, 8% Beef meat, and 20% Pork fat.
• The “pep” in the pepperoni comes from paprika.

Source: The show on the History Channel that has the fat guy who loves food.