Hi Marydean =)
Me again...
I actually got GD when I was pregnant first time around and managed to control it with diet alone (thankfully) I was so paranoid about having a massive baby LOL but I just had to cut down on the amounts of pasta/rice i was eating with meals etc. I only wish i had kept it up after having the bub !! Im not sure about the stats on reducing your risk of getting it all together but cutting out sugars must be helpful !

Jane