Your immune system overreacts to a particular protein found in that food. Symptoms can occur when coming in contact with just a tiny amount of the food.

Many food allergies are first diagnosed in young children, though they may also appear in older children and adults. Eight foods are responsible for the majority of allergic reactions*:

  • Cow’s milk
  • Fish
  • Shellfish
  • Tree nuts
  • Eggs
  • Peanuts
  • Soy
  • Wheat

*Source: American Academy of Allergy Asthma & Immunology.