Simple Carbs like refined white flour, pastas – instead I opted for only whole grains, nothing milled or crushed.
Is he chewing on whole grains? Boiling them as porridge? I figure you have to mill or crush at some point to make most things. Whole grain flours, unbleached and with the germ/bran unfiltered seems fine to me. When dealing with wheat, some people may want to watch the gluten content as well, depending on their sensitivity.