100% anecdata but my dad had (diagnosed) celiac disease. Did the diet for a while then got stubborn and decided to keep throwing in regular bread and beer rathe

100% anecdata but my dad had (diagnosed) celiac disease. Did the diet for a while then got stubborn and decided to keep throwing in regular bread and beer rather than be "miserable." Fast forward a couple of years of agonizing pain, first in the gut then in his head, and he had three brain haemorrhages and now lives in 24/7 care with no memories or language in a daydream most of the day. I've long suspected it was gluten induced inflammation, so stories like this are interesting to see.