<<Disclaimer: Verify this information before applying it to your situation.>> Celiac List Folks: Don Kasarda asked for instances of varietal variation in allergic reaction. I think a very common one would be red wine being more bothersome to many people than white wine {varietal, get it?}. The histamine content of the skins and how they are processed eliminates this instance from the "good example" category, however. In my own case, I can eat pecans with no detrimental effects, but walnuts, english walnuts, and black walnuts make me quite ill. I thought this kind of allergic specificity was common and well known, but then, I don't recall reading much on food allergies. Pax, Dave Dave Kinnaman <[log in to unmask]> 512/463-9321 #insert pithy aphorism here# > ... If there is evidence for varietal variations in > allergenicity I would be very much interested in hearing about it...