There is some evidence that the low FODMAP diet that has proven very effective for managing IBS can also be effective for managing IBD such as Crohn's. Personal

There is some evidence that the low FODMAP diet that has proven very effective for managing IBS can also be effective for managing IBD such as Crohn's. Personally, it has been much more effective for me than any of the half dozen medications I have tried. Of course, this is not actually a cure for Crohn's, just a treatment.