Irritable Bowel Syndrome Message Boards

Yes for some people simply the act of eating can trigger an IBS attack irrespective of the food eaten.

For others the trigger can occur after eating or it can be delayed for example until indigestible food reaches the colon where it is fermented. The spasms maybe triggered at the beginning or near the end of the colon. In summary colonic spasms can be trigger almost anywhere along the GI track. So symptoms from food trigger can occur anywhere from a few minutes to many hours after ingestion. Furthermore, hormones, illness and variety of other factors can trigger IBS symptoms. It is a very complex syndrome and the time delays make tracking symptoms from foods difficult.

You might find some of interviews IBS experts on International Foundation for Functional Gastrointestinal Disorders web site of interest. In particular, the first one with Dr. Whorwell.

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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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