This study is quite interesting, they eliminated everything but spelt bread and organic meat.
It would seem that organic meat is ok at least for CD. ALso toothpaste and dish detergent.
They tried to get back to an 1850's type diet.
It is also interesting to me that with all the searching I do I never ran across this paper before,and I have looked into this subject.
Old Mike
http://onlinelibrary.wiley.com/doi/10.1002/ibd.20295/pdf
Post Edited (Old Mike) : 7/27/2012 5:54:27 AM (GMT-6)