So that's how...

This article sets forth another theory for how food allergies could begin, especially in those who present food allergies as older children or adults. The researchers believe there is some evidence that after absorbing certain allergens through the skin, such as wheat or coloring, that an individual could develop an allergy to that food. With such a wide variety of symptoms, onset, etc., it seems unlikely that there is just one cause of food allergies, but maybe this is part of the "how"!