My grandfather had Crohn's and he literally had 2 feet of intestine left by the time he was done. Literally everyone in my family has wheat/ dairy allergies and I'm no doctor/ scientist, but I'm confident there's a connection. I've heard of other people that have made lifestyle changes and no longer show any signs of Crohn's. I have pretty extreme food reactions myself, always wondered if it's genetic, I'm working pretty hard to maintain a clean diet because I want to avoid any problems.