Creekryder... I'm on a low carb Paleo/Primal diet lately and it helps a lot. It cuts out all bread, pasta, grains, sugar, etc. I do limit fruit also. Usually I only have berries or citrus when I do have it. Mostly, I'm eating meat and lots and lots of veggies.
Yeast feeds on sugar, sugarbear.
There are a few of us trying to eat Paleo/Primal on the Healthy Eating Support thread, btw...