Food allergies

A food allergy is an abnormal immune response to food, with symptoms ranging from mild to severe (anaphylaxis).

Allergies occur when immunoglobulin E (IgE), part of the body's immune system, binds to food molecules. This usually occurs with protein in the food, and triggers the release of chemicals such as histamine.

In the developed world about 4% to 8% of people have at least one food allergy. They are more common in children than adults and appear to be increasing in frequency. Some allergies more commonly develop early in life.


Browse food allergy information, symptoms, triggers, treatment, and more

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Casein allergy

Casein allergy is an immune response to milk proteins.

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Citrus allergy

An immune system response to proteins found in the Citrus family of fruits.

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Coconut allergy

Coconut allergy is a reaction to the fruit/seed of a coconut palm tree.

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Cucurbitaceae allergy

Cucurbitaceae allergy is an immune system response to proteins found in the cucurbitaceae family of fruits and vegetables that includes melons, cucumbers, and gourds such as pumpkin and squash.

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Egg allergy

Egg allergy is an immune system response to egg proteins.

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Exercise-induced food allergy

Exercise-induced food allergy is a rare reaction that occurs after eating a specific food before exercising.

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Kiwifruit allergy

Kiwi fruit allergy is an immune system response to proteins in the kiwi / kiwifruit.

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Latex food allergy

A condition where people with latex allergy can have an allergic reaction when eating certain foods.

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Mammalian meat allergy

An allergy to mammal meats which occurs after being bitten by a tick

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Oral allergy syndrome

Oral Allergy Syndrome (OAS), also known as Pollen Food Syndrome (PFS), usually occurs in people who are allergic to pollen from trees, grasses or weeds.

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Peanut allergy

Peanut allergy is an immune system reaction that occurs soon after exposure to peanuts (also known as groundnuts).

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Rosaceae allergy

Rosaceae allergy is an immune response to plants and fruits in the rosaceae (rose) botanical family.

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Seafood allergy

Seafood allergy is a hypersensitivity to proteins found in vertebrates, invertebrates, as well as bivalves and other molluscs.

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Seed storage protein allergy

Seed storage proteins (SSP) are biological reserves of metal ions and amino acids used by plants as nutrients and defence during seed germination and seed growth, which may trigger an allergic response or sensitivity in the gut.

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Soy allergy

Soy allergy is an immune reaction to soya, a product of soybeans / soya beans.

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Tree nut allergy

Tree nut allergy is an immune system reaction to tree nuts that occurs soon after exposure.

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Wheat allergy

Wheat allergy is a food and contact allergy to products that contain wheat.

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Yeast allergy

Yeast allergy is a term ascribed to yeast-related problems that appear even when clinical signs of a yeast infection are absent.

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