9 Common foods that can cause allergy

Milk allergy is most common in children, but adults can also develop it. Symptoms can range from mild (rash, hives) to severe (anaphylaxis, a life-threatening reaction).


Egg allergies are another common childhood allergy, and some people outgrow it. Symptoms can include skin reactions, nausea, vomiting, and wheezing.


Peanuts are a major food allergen and can cause severe reactions, including anaphylaxis. Symptoms can appear within minutes of exposure and include trouble breathing, swelling of the throat, and a drop in blood pressure.


Almonds, walnuts, cashews, pecans, and other tree nuts are allergens for many people. Symptoms can range from mild to severe and can be similar to peanut allergies.

Tree Nuts

Soy allergies are becoming more common, especially in children. Symptoms can mimic milk allergies and include digestive issues, skin problems, and respiratory problems.


Wheat allergy is less common than other food allergies, but it can cause serious reactions. People with celiac disease, an autoimmune disorder,  should also avoid wheat gluten. Symptoms can include digestive problems, skin rash, and fatigue.


Fish allergies can develop at any age and can cause mild to severe reactions. Symptoms can include hives, nausea, vomiting, and trouble breathing.


Shrimp, crab, lobster, and clams are all common shellfish allergens.  Symptoms can be similar to fish allergies and can be severe.


Sesame allergies are becoming more prevalent, especially among adults in the Middle East and Asia. Symptoms can range from mild to severe and can be similar to peanut allergies.