Because of having my gall bladder removed, I occasionally have diarrhea if I am not careful with my pre-ride diet and as a result, I don't eat before my 45min commute. I have had some orange juice to drink and even that can cause me problems at times.
Bathroom issues are always at the top of my list of concerns when I go for a longer ride such as the 60km route I sometimes enjoy. However, the 62km route to the cottage included 30km on dirt roads with lots of hiding spots in the bushes so as long as I have made it to that road, I can relax but the first 32km through the city and on the minor highway has to be considered before I head out.
I was planning on a 95km ride to a provincial park this summer but plans changed so I couldn't do it. However, it was a concern, partly because it would have been the longest continuous ride but moreso because of bathroom concerns.
However, does anyone have stomach issues like myself and also do long rides such as touring or fitness rides? Does the stomach hold off on processing while exercising?