So I caution you against that. I've been at the hospital, and have had some pretty good results with the patients I've seen. I've had many physicians very excited. They love the way that it's being taught. So carbohydrate counting, if you don't know it or aren't using it yet, continue to seek information.
Vitamin supplements are fine.
If you don't get a good, balanced variety of foods, I would recommend taking vitamin supplements. Although we often want to buy the more generic brands of vitamins, our bodies often don't utilize them as well as the name brands. I would recommend at least a multivitamin. Your dietitian will help you design a diet that is appropriate for you.