Thank you for the insight. The reason I asked is that some grains like wheat contain inulins and/or fructooligosaccharides which are collectively called fructans. Unlike gluten which is a protein these are carbohydrates made up of chains of fructose molecules which are undigestible by mammals. Mammals don't have the enzymes need to break these molecules down so they pass through the GI tract to the bowel were they are fermented. Fructans are not only found in wheat but in vegetables like onion, garlic and artichokes. Also, recently fructans have been added to some commercially prepared foods too. It has been found that fructans particularly inulins can produce bloating and gas. Heather even warns about the problem with inulin based SFS.
Anyway - just another bit of information you might consider when experimenting with your diet.
-------------------- STABLE: ♂, IBS-D 50+ years - Science of IBS