I don't know, but I've always loved those things. When I was younger, I would buy one of those cardboard milk cartons of them and eat them until I was almost sick.
Much like money - you can't take your body with you when you die so why the fuck worry about empty carbs, body fat percentages and how many cans of tuna you can consume without wanting to kill someone.
Besides, it's Halloween candy and since the holiday has already passed - that means there's no calories or carbs in them. If you don't undertstand that rule - ask any chick and she'll explain. Sort of like donut holes are void of calories...