8 foods most likely to trigger diarrhea

5. Fried or fatty foods
Rich foods that contain a lot of fat can trigger diarrhea in people with sensitive stomachs. So can fried food. Apparently, fatty foods aren’t always digested properly. That means the colon still has to break them down when they get there. To do that, the colon will release fluid that can cause diarrhea.
In the case of fried food, stomach problems can also come from the oils used to cook the food. Restaurants tend to use the cheap, industrial vegetable oils (think soybean, corn, canola, etc.) that aren’t good for your gut (or overall health, for that matter).