I know, I'm just not sold on the thing as a whole as I know of others who are in the same boatSome allergies have been largely proven to be genetic, some are yet unexplained. Studies have also shown that many people will be able to eat something their entire lives and then suddenly they develop a harsh allergy to gluten, or soy, or corn and must give up what was once their favorite food. Allergies are weird and I'm not convinced it's entirely the fault of under-exposure.