Funny you should ask.
Read Wheat Belly by Willam Davis. It has been referred to on this site, but I cannot recommend this strongly enough.
It is excellent! I have mostly stopped wheat - not diabetic but it is in my family - and it is enormously helpful. I still occasionally have it but the point is I know what it does to me so I ma not under the false impression thaqt I am eating healthy when I have it. Like icecream or sweets.
Davis' blog is www.wheatbellyblog.com.
Excellent discussions and lots of people describing how their diabetes has been stopped by going off wheat.
Other issues as well of course.