I personally don’t intentionally give my cats any form of pork Pork as it not easily digestible., although I appreciate in may be in some makes under the name of meat. Also ham, bacon etc contain a lot of nitrites and salts which can strain the cat's kidneys.
Cats needs proportionally more protein in its diet compared to other mammals - one reason is that certain liver enzymes that break down proteins are always functional (they are turned "on" and "off" in other animals) and so cats use some energy from protein just to fuel this process. Other mammals use most of their protein for growth and body maintenance. While an adult dog's protein requirement will drop to about one third of its requirements as a growing puppy, the kitten only needs about one-and-a-half times the protein of an adult cat because the adult level is still relatively high.
Unlike an omnivore, whose digestive system consists of a fairly large small intestine and relatively large stomach, the carnivore's system consists of a fairly short, small intestine and relatively small stomach. Thus, a carnivore's optimum diet must be concentrated, highly digestible, and low in residue.