Get the Basics on Food Allergy and Food Allergens

Food allergies can cause a mild allergic reaction -- such as hives or itchy throat -- or a severe, life threatening allergic reaction known as anaphylaxis. Find the facts about food allergy, the "Big 8" food allergens, and prevention of allergic reactions.

What's In Your Food?

Food Allergy Facts and Symptoms

  • Shellfish and peanuts are common food allergens
    What are Food Allergies?
    The cause of food allergies is not fully understood, but they produce a variety of symptoms that vary from mild to fatal.
  • peanut, nuts, food allergy, food allergy, snacks
    Food Allergy Symptoms
    Food allergy symptoms can be a little different from symptoms of hay fever, pollen, pet and other allergies. Find the signs here.
  • Food Allergies: A Case of Mistaken Identity
    Nutrition expert Heather Reese breaks down the basics of common food allergies and food intolerance.

Major Allergy Foods

The "Big 8" Food Allergens

pile of mixed nuts
These 8 foods account for 90% of all food allergy reactions in the U.S. Learn more about them and how to spot them in any dish.
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Take the Quiz!

All About Asthma and Allergy Triggers

Reducing your contact with your triggers is an important first step to allergy and asthma control. How well do you know what sets off your symptoms?
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Expert Food Allergy Advice

  • Dining Out With Food Allergies
    Negotiating the menus and kitchens of restaurants can be daunting when you or your child have food allergies. Here's how to watch out any allergy dangers and enjoy meals you didn't have to cook yourself.