Fruits
Kiwi & Eczema
Top cross-reactor with latex allergy (30–50% of latex-allergic people react). The tingling many people feel is often from physical crystals in the fruit, not allergy — true allergy involves swelling or hives.
3/5
Reaction Timeline
Most kiwi reactions are immediate — OAS (lip/mouth tingling), urticaria, or anaphylaxis. The oral tingling many people experience from kiwi is often from calcium oxalate raphides, not allergy. True allergy involves swelling, hives, or breathing difficulty.
How Much Is Needed To React?
Any amount
Latex-fruit syndrome patients and those sensitized to Act d 1 can react to small amounts. Birch-cross-reactive patients (Act d 8) may tolerate small amounts or cooked kiwi. The calcium oxalate irritation is dose-dependent — one bite vs. two whole kiwis.
Does Preparation Matter?
Yes — preparation significantly changes reactivity
Heating destroys Act d 8 (heat-labile Bet v 1 homolog), so birch-cross-reactive patients may tolerate cooked kiwi (in jams, baked desserts). However, Act d 1 and Act d 10 (LTP) are more heat-stable, so patients with primary kiwi allergy may still react to cooked forms. Gold kiwi has different allergen profiles than green kiwi and may be tolerated by some. [18]
Also Watch Out For...
Latex — top 4 latex-fruit cross-reactivity (Hev b 6.02/hevein) [18]
Banana — latex-fruit syndrome
Avocado — latex-fruit syndrome
Chestnut — latex-fruit syndrome
Birch pollen — Act d 8/Bet v 1 cross-reactivity
Sesame — sesame-poppy-kiwi cross-reactivity syndrome
What To Use Instead
Pear (mild fruit, low allergenicity)
Blueberries (for fruit salads, different family)
Mango (for tropical flavor — note: cross-reactive with cashew)
Passion fruit (for tropical taste, different botanical family)
Hidden Sources
Fruit salads and smoothies
Pavlova and fruit tarts
Tropical juice blends
Some ice creams and sorbets
Dried kiwi slices
Green smoothie powders
Some cosmetics (kiwi extract)
