Usually while you are pregnant they want to keep your bgs fairly low. Did they give her a bg range to stay within. Also, is she on insulin or any other meds? I would think it is important to eat very healthy, natural foods. If she is not on insulin I would watch the carbs especially the processed ones. I try to eat as many real foods as possible. Lots of times the added preservatives and chemicals play havoc with our bg. Does she have a bg meter. I would suggest she test 2 hours after meal and then adjust diet depending on bgs ranges she was given. I think eating protein ( meat, eggs, fish (occasionly), cheese, lots of veggies and some lower carb fruits like berries. I would cut back on bread, cereal, rice, potatoes and pasta in order to keep bgs low.