Hi Mikeey... I found myself having many stomach issues too... But sauerkraut is made from cabbages an cabbages is a no no with a jpouch....I learned the hard way...i had uncontrollably diarrhea for a week an a half....it was unbelievable...but two.. it all depends on that individual also....but id be careful if i was you....i snapshot the google search about the foods to avoid....google it an see it if helps...also let me know what stomach problems you're experiencing...my issuses happens after i eat a meal...i start feeling really nauseous an sick feeling....very distrubing...i dont have a clue why....it that what you experiencing?