I'm fairly new to having a J-Pouch as well - had my take down surgery in July of 2017 and am on Cipro for my first case of Pouchitis (I got a little carried away with my diet over the holidays and am now paying for it). I completely support your holistic approach. I also want to do everything I can to avoid going back on immune suppressant drugs if at all possible.
I started seeing an Integrative Medicine doc here in Dallas (she's a Gynecological Oncologist who started the integrative Medicine program at Baylor hospital here) and I like that she has a medical background but also understands the benefits of holistic approaches, including supplements, stress management and acupuncture, to name a few. She recommended to me reading a book called The AutoImmune Solution by Amy Myers and it has been enlightening!
I know that we get treated for specific diseases (i.e. Colitis) but really I think many of us with J-Pouches have auto-immune issues, which are whole body. I know that if I don't keep my diet and stress under control, my immune system could either cause inflammation of my pouch or attack some other body system.