I wonder since you always hear about the allergy being to peanuts if that includes all nuts, such as walnuts, pecans etc?
yes. Peanuts, although not a nut but a soybean relative, have a common chemical I think called ergonine or something like that. There are varying levels with peanuts and walnuts being the highest and progressing downward. Still I have to avoid things like trout almondine, or walnuts on salads. Even rice has a minute amount of the substance, but I have not given up my rice completely.
I also forgot to mention chocolate as having the same substance, but was reminded by another post on this thread.
Strange that I hadn’t heard that the intolerance is possibly genetic from a certain ethnic location, Lapland. Also includes Norway (My heritage). This may be something derived from a study since I was diagnosed. I haven’t done any follow ups since I changed my diet almost 20 years ago, knowing what to avoid.