Thanks for the clarification - it's good to know that some fibers are not fermentable.
What about starches? Is there a high degree of variability in the fermentability of different starches? If so, it would seem prudent to restrict the intake of the highly fermentable starches.
Thanks for the link to the info about the gastrocolic reflex. Am I right in thinking that one of the take-home messages here is that while many with IBS can avoid major dietary triggers, for some, the mere fact that there is a functional problem means that we can sometimes do everything right diet-wise, but still have symptoms?
I guess I ask this because over the years I have invested much energy in trying to find the seemingly ever elusive dietary combination that will resolve my symptoms. Maybe, in some cases, once obvious triggers have been eliminated, further dietary restrictions will result in minimal or no gains (because, again, there's a functional problem with the colon that can be triggered by merely eating, regardless of what is eaten).
Chris
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