I read that hot dogs are pretty much mostly fat and water with some odd ball parts for protein. (Of course, this was in Biggest Secrets, but it sounds relatively true.) I’m comfortable with the fact, and enjoy a good hot dog from time to time with no ill regrets. What makes me wonder, is why do they plump when you cook 'em?
And as an extra aside, what really is in hot dogs? Partially-defatted beef fatty tissue?