Both come from pork. Prosciutto is dry cured ham that comes from the pork's hind leg. It is generally served uncooked but it is cured. While Bacon typically comes from the pork belly. Bacon is also salt cured, but is usually served cooked. Both are very high in sodium as it is used in the curing process. Both are good for enhancing the taste of virtually any dish.  And we all know that bacon makes everything better! Once opened, bacon needs to be consumed immediately. Prosciutto on the other hand stores much better in the refrigerator sealed in it's deli bag for about 2 weeks. But, in my house it doesn't last that long.