I don't have my j-pouch yet, but I know that there are many people that do have j-pouches that can eat nuts without a problem. But they do bother others. So just don't eat anything else that might cause issues until you've passed the pistachios and then you'll know if they are ok to eat. :) I eat nuts all the time with my temp colostomy, but it is a different situation so i'll have to try them slowly once I'm in you're boat. Good luck!!
-diagnosed with UC Dec 2006 at 22
-allergic or intolerant to all 5ASAs, sulfa and 6-mp
-emergency transverse colostomy on 9/13/10 from perforated colon
-J-pouch surgery scheduled 3/21/11