I've made a recent, but not very earth-shattering, discovery: the times I have a glass of wine (or three...whoops) with dinner, my blood sugars are phenomenal. Doesn't matter that I'm eating pasta, bread, dessert - anything that normally messes me up BG-wise, doesn't. I have to watch myself afterwards, so that I don't drop low, but the wine seems to completely eliminate that post-meal spike I sometimes see. I can tell this, because my CGM has a pretty much flat line all the way through dinner, as well as for two hours afterwards. If I've eaten something high-fat (read: lots of cheese), I still see some elevation after two hours, but it's nothing like it normally would be.
This could be a dangerous discovery... ha.