I don't know why dieticians are still doing this to their diabetic patients. 18 carb choices a day is way too high to be able to lower bgs significantly. Many in the medical profession think all diabetics get lows in bgs and they overprescribe carbs. Do your own experiment with your bg meter. I usually eat 1 carb choice per meal ( 15 carbs). Some meals like breakfast I may do a lot less. Breakfast is usually bacon and a couple of eggs with a veggie. If my bgs are low enough I will have a piece of sprouted grain toast. Every one of us is different, so use your meter. Ideally you want to be 120-140 after meals but that may take a while to achieve.