I’ve been pondering a similar ELI5 question regarding nut allergies. So many of the things we call nuts aren’t true nuts, eg peanuts, cashews, almonds but they all seem to grouped together with regards to allergies. Do people with nut allergies have to be careful to avoid things like fragments of peach pit? What exactly is going on and why do allergies seem to have a a concept of the colloquial term “nut”.
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