I developed a severe allergy to tree nuts my freshman year of high school. I wasn't allergic to any foods during childhood and didn't really recognize what people with food allergies endured until I developed one myself.
Now I carry an epipen with me everywhere I go, because of the possibility of anaphylaxis. I haven't eaten tree nuts in years, even though I know how healthy they are, and this has really worked against some dietary changes I've tried to make over the years such as eating less animal protein and trying to eat more healthy plant-based fats and proteins, many of which are in nuts. I can eat peanuts but not any tree nuts.
I've always wondered why the allergy came about so late, where did the allergy come from? An article I read recently suggests it may be due to prescription antibiotic use. This makes sense, since I was prescribed antibiotics for a long time in middle school to fight against acne.
I found the publication and also an easier to understand article describing the publication.
Please consider checking these out and sharing any articles you've found. I really wonder if this is the case. I'd appreciate your thoughts.