I am not a coeliac but I was what I thought to be gluten intolerant, so just as an experiment, I tried eating traditionally made bread using "strong" (i.e. gluten rich) flour to see what would happen.
Much to my amazement, I found that I did not get my usual gluten symptoms (bloating and diarrhoea) and was virtually cured!
I also remembered that when I was a kid and people only had bread made with strong gluten-rich flour (large amounts of gluten were needed to make it rise) gluten intolerance was not an issue. Its arrival seems to coincide with the invention and introduction of the Chorleywood baking process in the early 1960's, which reduces the total baking time from flour to loaf to as little as three and a half hours. It also uses cheaper grades of flour with less gluten and several additives, including enzymes that are not mentioned in the list of ingredients. About 80 percent of shop-bough bread is made in this way, so you have been warned. See anhinternational.org/2014/0... . Some forms of so-called gluten intolerance could be due to any of these. Also, the adhesive properties of the gluten may bind the stools together more firmly to reduce in incidence of diarrhoea.
If you are affected in this way, stick to traditionally-made bread that specifies that it is made with strong flour or make your own. It also tastes much nicer. But please do not try it if you are a coeliac since this is a totally different autoimmune response to gluten where you must still avoid gluten like the plague.