The thing I am struggling to figure out for myself is whether to follow the prescribed diabetic diet or to eat lower carb. When nonpregnant, I eat a low to moderate carb diet (basically little sugar and white flour, and limited grains, potatoes, and fruit) but now having reviewed a week of my log they want me to increase both calories and carbs quite a bit. (I was obese to start and am overall down 16lbs this pregnancy, but my still-obese weight has held steady for about 10 weeks.) I have not been trying to restrict calories at all (the opposite, really) but have truly been less hungry, had more food aversions, and felt full faster than usual.
beep: My DH is an insulin-dependent type II diabetic and he runs into the same issue. GP says to stick to a Mediterranean-type diet with a focus on healthy fats and overall low calories, but the one time he went to an endocrinologist, they were pushing the Atkins-type low carb thing. Add to the issue now that many naturally-minded healthcare providers (not MDs necessarily, but others) are advocating paleo, and it's a minefield. I swear he just wants someone to TELL HIM WHAT IS OKAY TO EAT!
My husband played around with it a bit, and the thing that was the most effective for him was to cut down on the processed carbs and not worry too much about fruit. Processed things like bread he generally tries to avoid (even if whole wheat), but brown rice is okay, because it's basically unprocessed. If he "falls off the wagon" so to speak (like he just NEEDS a bun with his hamburger, totally okay!) then he'll start cutting back on other sugars like fruit and the like. Anyways, I think like most chronic diseases, GPs and specialists are just kind of grasping at straws for ideas, which what makes their advice so changeable...:)