Uh, carbs as in "you burn it, you get X carbs", or carbs as in "when your body digests this, it uses A carbs to process, B carbs go out in waste, and the balanc

Uh, carbs as in "you burn it, you get X carbs", or carbs as in "when your body digests this, it uses A carbs to process, B carbs go out in waste, and the balance is C carbs"? The former isn't nearly as useful (but of course is much easier to figure out with any accuracy).