Actually, with dextrose and maltodextrin in addition to the Saccharin (and dextrose highest on the ingredients list), it's got a lot of carb-heavy filler...

What does the box say about grams per packet if anything? These fillers are actually a minimum of 0.5g and sometimes up to 1g per packet, by the way. So if you use a lot of sweetener, count those darn carbs.