I thought I was gluten intolerant until I started eating taco's and found any food with iron was difficult to digest. Taco's were a good diet You might try them? When I discovered blood in my stool ,I thought of my friend from 30 years ago who told me he had an ulcer caused by bacteria and they cured it with an anti biotic. He even mentioned the heliocobacter pyli as the culprit.I got my nurse practitioner to prescribe something to attack the bacteria and she said flagyl would work. After 7 flagyl,I was ok..(spellchecker is missing?)(flour is fortified with iron)