I couldn't agree more. While I give my dogs the occasional blueberry, I prefer not to include veggies and fruit in their regular diets. I am using primal right now, but my Louis is still a bit yeasty, even with regular probiotic...
I am certain its the fruits and veggies, so I have started feeding organic chicken parts and buying organs and other meats from a butcher and just giving them to him to chow down on. A local pet shop also sells 'parts' ready to eat and fresh green tripe so he is only eating primal about 50% of the time and I am seeing positive changes!
Another benefit - he is EXHAUSTED after feeding time