I think these foods are overlooked. There is a lot of protein in these foods, and hardley any fat!. I personally dont realy like pork rinds, but their better for you than chips. These and nuts make for an excellent snack.
Beef jerky to my own knowledge has a whole hella lot of salt, and its pretty high in cholesterol. Making it your own could be a different story, but I would not eat beef jerky while on a diet based on its amount of salt.