Navigating the world of food allergies. Each year over 200,000 people in the U.S. require emergency medical care for allergic reactions to food. 33 million Americans, or 1-in-10 adults and 1-in-13 children, are allergic to one or more of the nine major food allergens that include milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, soy, and sesame. And, anaphylactic food reactions are growing.