How did you determine what foods or substances give you diarrhea?I know there have been lengthy threads on this BB about how long it takes food to go through your system, etc. I don't think doctors even know, in those with our condition.I think when I eat something that disagrees with me, it is within 30 minutes or so of eating it, that I get severe urges and several bouts in the bathroom. Then, I'm done (and usually C for a a couple of days)Unfortunately they only time I've had the experience with the same food twice is when I've eaten Chinese. (yet, I've had it dozens of times in my life with no problem)What are your symptoms-are they sudden, or do you know the next day? HOw many times do you notice it before you really know what is the trigger food or drink?Jeanne