A protein found in wheat, barley and rye. People with celiac disease should avoid gluten.

This includes shrimp, crabs, lobsters, etc. Some people may be allergic to proteins found in shellfish.

Whole eggs or their components can trigger allergies. Some vaccines and medications may also contain egg protein.

Some individuals may be allergic to fish proteins. Finfish and flatfish are affected.

A peanut allergy can cause serious reactions. It is important to read labels carefully, as peanuts are sometimes found in unexpected products.

Soy is a legume and a common source of protein. Some people may be allergic to its components.

Dairy products such as milk, cheese and butter contain milk proteins. Milk allergies are common among children.

This includes walnuts, almonds, cashews, hazelnuts, etc. Nut allergies can be serious and often persist into adulthood.

Celery allergies can cause skin reactions, itching, or breathing problems.

A mustard allergy may cause symptoms such as rash, itching, or difficulty breathing.

These small seeds are used in many dishes and can trigger allergic reactions in some people.

Used as preservatives in some foods, they can cause reactions in sensitive people, such as respiratory problems.

A legume related to peanuts, lupine is sometimes used in certain flours and food products.

Mussels, clams, snails, etc., are molluscs. Allergies to these seafood can cause serious reactions.