For myself I can say that there are foods that are likely to trigger inflammation, even if not every time. Already with UC when I still had my colon I reacted poorly to canned sausage. My digestion went havoc afterwards and smelled absolutely disgusting. I had similar reaction to canned fish like mackerel occasionally.
My suspicion is that foods with a high load of histamine are causing me trouble. Those are mainly foods that take some time to mature, like sausage, certain kinds of cheese, fermented foods. Histamine is an inflammation driver. Too much of it is harmful for anyone, so I'm not sure what role it plays for my chronic pouchitis. Doctors usually don't care about that subject.
As I have recently read a post in another IBD forum from someone who could reduce inflammation with an anti-histamine med (desloratadine) I decided to give that a try (only 3 day ago, too early to tell if it helps). Though that person also suffered from hay fever and I do not have allergies myself, so I usually wouldn't go for such a med.
Has anyone had similar experiences or suspicions regarding histamine?