Especially since I did not develop this issue until I was 25... TBH, I use to eat them by the jar full, and they say you can develop an intolerance due to over exposure. I'm not allergic to sunflower oil however... just the seeds... my tongue and throat get all itchy, and my inner ear itches... But one thing to note, is cross contamination isn't a problem either. It's only if I actually eat them.Sunflower seeds? Never heard of that before, but not like am some allergy specialist either. That's just odd enough of an allergy item to be generally ok and easy to avoid, but except for the odd item that might have sunflower seeds in it that don't say so could easily be a pain to deal with.