I have J-pouch since 2015, diet and input is key. I said before that the FODMAP diet really works. There is no one diet and it is a mix of a few. Whatever works for you. Keeping track each day of what u eat and how much and what gives u pain, burning, gas, heartburn, etc. Then again in another week it could change. It is very complex. You will figure out soon enough what works for you. The dr's plainly tell that from the beginning. Eat what u can and doesn't bother u. Many suggestions out there and good ones. I went gluten free, non GMO, lactose free, eat red meat rarely and I still have problems. I have SIOB, gluten sensitive and lactose intolerant. All proven by tests results in the past years and due to my J Pouch caused by UC. But that's me and my system. Best of Luck.