1gr carbs - 4cal
1gr pro - 4cal
1gr fat - 9 cal

I would count it...it is what it is. They probably mean 0 cals from sugar or something like that...since it's sugar free. Don't you wish that people didn't put misleading shit on their labels?

EDIT: What do you mean after the workout? You're having the drink before, right? The time frames you listed have me confused.