b9a4451e_Health_Information_Library__Why
[Recommendation] Uncover your food allergies [Why] 
Some people with Crohn's disease have improved after avoiding allergenic foods. Common culprits are grains, dairy, and yeast. An elimination diet can help uncover your sensitivities. Some people with Crohn's disease have food allergies and have been reported to do better when they avoid foods to which they are allergic. One study found that people with Crohn's disease are most likely to react to cereals, dairy, and yeast.12 Increasingly, baker's yeast (found in bread and other bakery goods) has been implicated as a possible trigger for Crohn's disease.13 Yeast and some cheeses are high in histamine, which is involved in an allergenic response. People with Crohn's disease lack the ability to break down histamine at a normal rate,14 so the link between yeast and dairy consumption and Crohn's disease occurrence may not be coincidental. However, the allergy theory cannot account for all, or even most, cases of Crohn's disease.
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