Most red wines contain negligible amounts of sugar in the first place. It is almost all converted to alcohol during fermentation. A very dry cabernet sauvignon will typically have one gram or less of residual sugar per glass. Most truly sugar-free "wines" are also alcohol free, and it's debatable whether they should really be called wine at all. That said, Hannaford lists Natura Organic Cabernet, which claims to be not only sugar free, but also gluten free - which is as it should be, since wine shouldn't normally have anything in it that would introduce gluten in the first place.
I don't sell anything, but I think they do, check it out...
Thanks! Your answer is awaiting moderation.