My own personal feelings are pork is hard to digest so I don't ever give mine any -
I know some do but I tend to stay with lean chicken and nothing else. I found even steak will cause problems with my 2 so it's dry food with homecooked chicken - that's all they get - maybe an occasional scrambled egg and a tiny tiny TINY bite of steak cause of the sad faces they're so good at
but I always regret it.....
I think it depends on the dog and their stamina - what some can eat with no problems - others can't. But pork has always been on my list of a no no.....
I don't know if there's data to back up what I just said about pork but I'd rather not take a chance and again - that's just my personal feelings...it can be so hard not to share
edited to add - sometimes just a lick of something makes them happy so that's the way I handle depriving them of certain foods.....