Editor's Note (2026): This article has been updated where medical or scientific recommendations have changed since it was originally published. Updated information is marked with an asterisk (*) and explained in the Update Notes at the end of the article. I have searched for food allergy information through the Centers for Disease Control and Prevention (CDC), the National Institute of Allergy and Infectious Diseases (NIAID), the American Academy of Allergy, Asthma & Immunology (AAAAI), the American Academy of Pediatrics (AAP), and many other sources. Honestly, of all the research I have done, this topic seems to have the most variance. Even today, food allergy research continues to evolve, and medical recommendations have changed significantly since I originally wrote this article. Rather than pretending the science has always been settled, I've updated the recommendations where necessary and documented those changes in the Update Notes at the end of the article. In ge...