I don't know about food allergies, but for hay fever I think the allergies were there before - people weren't educated enough to recognize the symptoms. My fath

I don't know about food allergies, but for hay fever I think the allergies were there before - people weren't educated enough to recognize the symptoms. My father (born in 1948) got fed with anti-biotics for the first 40 years of his life until one day he was lucky enough that a new local physician arrived who had allergy problems himself and changed the therapy. I was born in 1977, and also remember all the anti-biotics injections I got as a child until they finally tested me for allergies at the age of 12. I'd say the majority of medical doctors in this area got aware on allergies in early 90's.