Thousands of children may be avoiding peanut allergies thanks to research indicating that early exposure to—rather than avoidance of—the legume is key. Now there’s reason to believe this is true for tons of allergens – and that the great “pandemic” of kid food allergies never needed to happen. Guest:  Dr. David Hill, attending physician with the Division of Allergy and Immunology at Children's Hospital of Philadelphia, and The Hill Lab. Want more What Next? Subscribe to Slate Plus to access ad-free listening to the whole What Next family and across all your favorite Slate podcasts. Subscribe today on Apple Podcasts by clicking “Try Free” at the top of our show page. Sign up now at slate.com/whatnextplus to get access wherever you listen. Podcast production by Elena Schwartz, Paige Osburn, Anna Phillips, Madeline Ducharme, and Rob Gunther. Learn more about your ad choices. Visit megaphone.fm/adchoices