Is sparkling flavor water good for you?!
carbonic acid which is in the sparkling water does taste like sugar. and that is why when you first open a two liter bottle of soda and you get that first drink fresh it tastes extra sugary. also if you are trying to loose weight check the calories as well as carbohydrates in it as those are bad for weight loss too (but don't cut them out entirely because you will end up in the hospital)
They have artificial sweeteners, just like everything else that is labelled "sugar free".
I don't live under a rock.