I don't know about the carb count of the milk powder, but meringues are basically carb-free except for the bulking agents in the splenda. I'd skip the skim milk powder and add 1/8 tsp cream of tartar (to stiffen the whites), and perhaps another packet or two of splenda if you feel it necessary. If you did that, it would be about 5 carbs for the whole batch. Meringues are like the ideal LC dessert, I make 'em all the time!