chicory root

Hi, I'm getting ready to go to work, so I won't be able to see the answer until tonight, but I have a question about Chicory root..

I drink a cup almost everymorning...it's plain chicory root ground very much like coffee, I get it at my local herbal store. I've never been much of a coffee drinker, but I like the taste of this, and I drink it mainly for the pre-biotic benefits.

I would like to list it on my food diary but I can't find any information about it as to if it has any calories, etc. One site seemed to indicate it has calories and sodium, which much surprised me, but this was their site trying to sell it, so it may be teh form they sell.

Can anyone tell me if plain ground chicory root has calories, sodium or anything else?

Thanks, gotta run.