I agree with KWK. Pork Rinds used to be my snack item when I was low carbing. Suprisingly, they don't have that much fat. A serving has about 7 grams compared to about 14 grams of fat for potato chips. They have no carbs at all, and alot of protein. However I think the protein is Collagen which isn't a complete protein, so it doesn't count. But they are crunchy, and a nice tasting snack for someone who can't eat carbs.
Not sure if eating skin is OK with vegetarians though.