Celiac disease, liver issues, and gallstones are just some of the conditions that can cause the change in stool color.

So although brown is the normal color, there are many variations ... a sign of gastrointestinal infections and celiac disease ...

It and Crohn’s both can leave you tired and your poop bloody or slimy ... Gluten can damage your small intestine if you have celiac disease. But many people with Crohn’s can eat gluten ...