This specially formulated puppy food avoids grains as well as high glycemic starches such as corn, potatoes and tapioca. (wileypup.com)
I also avoided all grains for a long time and even wrote a grain - free cookbook while healing my gut due to my autoimmune condition. (wellnessmama.com)
You can also avoid grains altogether, which some vets recommend for older dogs with bone and joint problems (although I don't know and couldn't find the science behind it). (herepup.com)