There are some known modulators of the immune system, but the medical forms can be especially blunt tools (i.e. steroids). Locally directed treatment is better, and maybe in the future we'll have specially crafted cells that can inhibit a specific response for particular antigens.
There is a long and slightly-controversial link between stress (and lots of other environmental factors) affecting the immune system. I'm not familiar with the literature.
(Sorry, i'm in this thread because I have MS, and there are lots of scam diets claiming to cure it. They don't - at all. They mostly just make folks feel like they have control).
As my specialist put it "if there was a common diet that cured people, we would know about it already". Anecdotally one never knows if their UC/Crohn's improves because of their diet or it's just part of the ups and downs of those diseases.
That said, I'm happy in general if I hear a fellow UC / Crohn's sufferer seems to have found something that works for them, especially something that is better for you than steroids and other treatments with severe side-effects.
That said, if I can get some placebo effect benefits from believing that reducing processed food helps, it might be worth doing -- if nothing else it reduces cancer risks :)
He is the inventor of the triple abx therapy for H.pilory so I would listen to what he says.
The prevalence of autoimmune diseases went up during a particular period of time while hygiene increased while other factors went missing that seems important for the regulation of our immune system.
Realistically, the best thing you can do is basic health stuff. Get activity, eat a variety of healthy foods, and so on. As you can, anyway. Mostly because this stuff improves your outcome if you happen to get another (and probably helps with the one you have - I have MS, and this basic stuff tends to help outcomes)
There's a bit of squick factor to get over but it is worth it for the relief.
https://helminthictherapywiki.org/wiki/index.php/Helminthic_...