Some dogs can tolerate it, but I would say that most dogs have trouble digesting pork. I wouldn't recommend it. It is very hard on their pancreas.
Please let me know if you have more questions,
Picky eaters can certainly be a problem. We usually recommend adding flavor enhancers to dry food. Science Diet or Iams makes gravy to put on the food, or there is a canned product called mix-it which most patients really love when we add that to the food.