Thanks. Yes it is very hard to differentiate between die-off symptoms and those of intolerance. HOwever I am quite positive that I do react negatively to anything that is fermented or anything that is moldy. Its a shame because Stannard who used to post on here years ago regained her health by eating masses of sauerkraut. Hopefully in time I will be able to tolerate more foods and therefore include sauerkraut in my diet.