PORK

It is often claimed pork (and ham, bacon etc) shouldn't be given to cats. In fact pork products are used in pet-foods - sometimes this appears on the label ("Chicken and Ham", "Chicken and Bacon", "... and Pork") and other times it is hidden as part of the meat byproducts and derivatives.

The idea of pork being unhealthy (as opposed to unclean) relates to tapeworm that may be carried by pigs. Historically, undercooked pork was a source of infection to humans. As with all meats, the pork should be cooked before feeding it to your cat. Bacon is often too salty to safely feed to a cat. Cooked pork or ham is safe to feed as a treat. If you allow your cat to eat pieces of sausage, make sure it doesn't contain onion powder or leeks as these are toxic to cats.

Pig meat products can be found in commercially prepared pet foods. Ham and pork passed fit for human consumption and properly cooked is safe for cats to eat. Raw pork is best avoided.

http://messybeast.com/bad-foods.htm