What part of the pig is bacon?
“Bacon is prepared from several different cuts of meat. In the United States, it is almost always prepared from pork belly. Elsewhere, it is more often made from side and back cuts, and bacon made from bellies is referred to as “streaky”, “fatty”, or “American style”. The side cut has more meat and less fat than the belly. Bacon may be prepared from either of two distinct back cuts: fatback, which is almost pure fat, and pork loin, which is very lean. Bacon-cured pork loin is known as back bacon.” Source and further information: http://en.wikipedia.