I don't know what you are going to be told by the dietician - but I can tell you that I wasted 3 years of my Diabetic life hopelessly trying to reduce all my numbers (BG/Triglycerides/Cholesteral, etc) following the advice of dieticians. The information that a lot of them give is outdated, and just wrong. If your dietician tells you to avoid fat, and eat plenty of rice, pasta and potatoe - run a mile from that fool. They are giving advise that is the OPPOSITE of what a Type 2 diabetic needs to do. (To be blunt - they are KILLING Type 2's with this information).
Since going on a lo-carb diet, my diabetes has become (almost) a non-issue for me. Lo-carb is the simplest, most effective (and tasty...) treatment for type 2 diabetes (from my experience).
You'll be able to tell if your NG level is lowered when you lo-carb, because you feel great. You have energy that you didn't have before.
This forum is GREAT for lo-carb advise, and there are loads pf us seeing great results by following a lo-carb lifestyle.