I have Crohn's Disease and tolerate Kefir because the Kefir does remove most of the lactose. I do agree that the makers diet is also a good one but, be careful because, I have been reading where the author alledgely may have been misrepresenting his credentials and is having legal trouble because of it.
I have also read "Breaking the Viscous Cycle" by Elaine Gottschall on the recommendation of my Doctor. Her take on Kefir is that it is a good healthy drink but, not suitable for someone who is very sick with Crohn's and having active diarrhea but, as we start to get our disease under control then it is okay. Until the disease is under control, she feels that Yogurt is a better way to go.
My own personal take on it was to research it out and make my own decision. I do know that according to my research it was discussed how Kefir can increase Peristalsis (the movements your intestines make to move food through the intestine) and I know that this increase can cause pain for people with Crohn's. Caffiene does the same thing and almost always will throw me into a flare up but, I have not had as much trouble with Kefir but, I don't drink that much of it at one time as I am still having trouble with the yeasty flavor.
Anyway, that is all I know and have read on the subject.
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