Radishes are edible roots in the Brassicaceae family of plants. Other plants in this family include broccoli, cabbage, wasabi and rapeseed.
Horseradish is in the same family of plants, but is made from a completely different plant.
Radish contains isothiocyanates which cause the heat sensation you feel when you eat it - this is not to be mistaken with an allergic reaction. Isothiocyanate is also found in horseradishes, wasabi, garlic and mustard seeds.
Radish pollen can cause allergic rhinitis, most commonly in those people that plant, pick and process the vegetable.
Radishes are a low FODMAP food. FODMAP
stands for F
olyols. Foods high in FODMAPs can cause symptoms of food intolerance, affecting the gastro intestinal system and this can be mistaken for a true IgE food allergy.
Radishes are a food high in salicylates
. Salicylates have the potential to cause gastrointestinal food intolerance symptoms in people who are sensitive to salicylates.
You can read more about Food Intolerances
on the dedicated Food Intolerance Page.
Radish is associated with contact allergic dermatitis from isothiocyanates if they come into contact with the skin.
Radish pollen is associated with allergic rhinitis (hayfever).
Radishes are in the Brassicaceae
family, so there may be some cross reactivity between these foods, which include rapeseed (canola), brocolli, cabbage, cauliflower, kale, kohlrabi, swede, turnip, wasabi, cress, mustard and horseradish.
Science Direct - Radish
Healthline - FODMAP Foods
ATP Science - Salicylates
Articles and Journals
Pollen Food Allergy Syndrome Caused by Japanese Radish: A Case Report, 2023
Common allergens in patients of allergic rhinitis in Gandaki province of Nepal, 2022
A case of hand urticaria, lip angioedema, and oropharyngeal pruritus induced by Japanese radish through IgE-mediated immediate allergic reaction, 2021
A Case of Anaphylaxis Induced by Contact with Young Radish (Raphanus sativus L), 2015
Occupational Pollinosis Induced by Radish and Chinese Cabbage Pollens, 2004
Allergic contact dermatitis from the radish, Raphanus sativus, 1974
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