There are 4 main allergens associated with potatoes. The main allergen in potato is the protein patatin (also known as sol t 1) which is thought to cause the majority of allergic reactions.
Patatin protein is very similar in shape to an allergen in latex called Hev b 7.
Sola t 3 is a cysteine protease protein.
Potato and sweet potato are not closely related but are both in the Solanales family of plants. Sweet potato is not considered to be cross reactive with latex, but is linked to food protein induced enterocolitis (FPIES).
You may have Pollen-Food Allergy Syndrome
if you suffer from potato allergy with oral allergy symptoms to 3 or more of the foods mentioned in cross reactivity section.
There may be some cross reactivity with potatoes, latex and other foods containing latex-like proteins. This is called Latex Food Syndrome
If sensitised to birch tree pollen you may have Pollen Food Allergy Syndrome and may also react to apple, kiwi, pear, peach, plum, nectarine, apricots, cherries, tomato, celery, carrot, parsnip, pepper, dill, cumin, peas, coriander, fennel, hazelnut, walnut, almonds, peanuts, lentils and beans.
If sensitised to grass pollen you may also react to melon, watermelon, tomatoes, oranges, potatoes and peanuts.
Foods linked to Latex Food Syndrome may have linked allergies to foods which contain high levels of chitinase like avocado, jackfruit, fig, avocado, banana, corn (maize), kiwi, papaya, pomegranate and tomatoes.
Other foods containing cysteine protease are potato, papaya and kiwi.
Allergen Encyclopedia - Potato
Allergies Explained - Potato Allergy and Intolerance
Health 24 - Allergic to potatoes?
Articles and Journals
Allergy to vegetables belonging to the Solanaceae family, 2019
Anaphylaxis to hidden potato allergens in a peach and egg allergic boy, 2017
Prevalence of sensitization and allergy to potato in a large population, 2017
Aubergine and Potato Sensitivity with Latex Sensitisation and Oral Allergy Syndrome, 2013
Cross-reactivity syndromes in food allergy, 2013
Anaphylaxis in an infant to raw potato, 2011
Contact urticaria to raw potato, 2009
Evaluation of patatin as a major cross-reactive allergen in latex-induced potato allergy, 2002
Identification of four novel potato (Solanum tuberosum) allergens belonging to the family of soybean trypsin inhibitors, 2001
Identification of patatin as a novel allergen for children with positive skin prick test responses to raw potato, 1999
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