Milk and some other food allergies can go away with time.  But peanut allergy seems to last a lifetime and it can be severe, taking people to an Emergency Room.  That’s why there’s been so much of an effort to try to prevent it.

Much of the allergy research focuses on who develops allergies, searching for the cause. But an equally interesting question is who outgrows them and when. A team at Northwestern University undertook both questions, funded by the Food Allergy Initiative. We've written about their answer to the first question: How common are food allergies?, and here we focus on their findings on outgrowing food allergies. (Gupta RS. Annals of Allergy, Asthma and Immunology 2013.