Thanks for your replies. The coconut flour bread seems a popular option, I will certainly try that. I noticed Buckwheat is on the foods to eat list, so that was also one I planned on experimenting with. Others like Amaranth, millet and Oat bran I don’t know, so I will look into them. This diet certainly calls for breaking easy routines and trying unknown things!! (Including figuring out where to buy all these more unusual ingredients)
Another question on an ingredient. What about gelatin? That was more for the dessert experiments.