Why do spicy foods cause a rapid transit through my digestive tract with need to have a bowel movement within 3-4 hours??? About 2 years ago, at age 66, I started having diarrhea after spicy foods, salads, high fiber and was diagnosed with ibs after numerous tests showed nothing wrong.
In the last year, strangely, I have been able to tolerate salads and high fiber foods again, but not spicy foods. I used to enjoy Mexican, Asian, etc. until the ibs diagnosis 2 years ago.