Don't know about the low carb sauce, but Bertolli's brand alfredo only has 2nc in it, just thought it might make it easier than trying to do it from scratch if you want it thick. That's 2nc/1/4 cup also, so not too bad. They are good quality (very nice people i called them to ask them about possible hidden carbs/sugar lying that i was allergic to certian things lol) The actual "hidden carbs" tracker on this website says that they are actually "over" doing their label's net carbs listed. It told me it only had 1nc/serving, but i go by the label non the less. Also, it's only $2 a jar at wal-mart, so much more affordable. I make it as chicken broccoli alfredo , just the jar of sauce, extra garlic, parmesan cheese and chicken and broccoli of course.