SB, you're right...digestive is the word. A funny, true story.
We have a restaurant in town that is very good and quite popular especially for lunch......but ask anybody, they were putting "diarrhea dust" on those salads....and the reaction was almost immediate....no lingering over lunch if you know what I mean. It took a while for folks to fess up to each other that they really didn't have an "urgent meeting" right after lunch. And for others to say "Really, me either, I just had to GO. Finally conversation spread and we all realized that everyone had issues after eating salad in this particular
restaurant. Someone told the owner, the problem was fixed. Probably an additive or something the lettuce was washed with. Anyway, they changed where they got their salad ingredients and all is right with the world. But if no one ever said anything, I'm sure this restaurant would be out of business by now.