Irritable Bowel Syndrome Message Boards | Re: Am I IBS-D? Unsure how to categorize

From the posting on this board it seems there can be a difference between the subtypes particularly the amount of IF that can be handled. In particular, individuals with IBS-C have methanogens in their colonic flora which produce methane gas in the colon. The degree of C increases with increasing methane production. This fact has been suggested as a useful biomarker for distinguishing IBS-C from the other IBS subtypes. However, as of yet there is a poor understanding of how to manage mathane production in individuals with IBS-C.

Hypnosis is unlikely to be helpful for malabsorption problems as these are physical problems. FODMAP malabsorption is not the direct cause of IBS. Even non-IBS individuals can have difficulties with some FODMAPs. If hypnosis worked on FODMAP symptoms then it would work for managing GI discomfort in individuals that don't have IBS. So far this has not been demonstrated to be the case.

Yes - lactose intolerance increases with age. So far I have not seen any information that suggests problems with other FODMAPs increases with age too. It is early days in understanding the mechanism behind FODMAP problems. Hopefully future research will give us a better understanding.

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STABLE: ♂, IBS-D 50+ years - Science of IBS

The FODMAP Approach to Managing IBS Symptoms
Evidence-based Dietary Management of Functional GI Symptoms: The FODMAP Approach
FODMAP Chart & Cheatsheet
The Role of Food & Dietary Intervention in IBS

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