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    Evidence-based information about eczema causes, triggers, and management

    What Food Allergies are Linked with Eczema?

    Eczema isn't caused by food, but in some children, food can trigger flare-ups. Around one in three children with moderate to severe eczema also have food allergies, though most do not.[1]

    Food allergy should be considered if symptoms appear soon after eating, such as hives, swelling, vomiting, or wheezing. In such cases, doctors may recommend allergy testing or a supervised food challenge.[2]

    Strict or prolonged elimination diets aren't advised unless guided by a dietitian—they can lead to poor nutrition and even raise allergy risk.[3] Early introduction of common foods like egg and peanut around 4–6 months, while eczema is well controlled, may help prevent allergies later.[4]

    If you suspect food triggers, keep a simple diary and discuss it with your doctor rather than experimenting alone.

    References

    1. [1] Christensen MO, Astvad K, Deleuran M, Vestergaard C. Prevalence of and association between atopic dermatitis and food sensitivity, food allergy and challenge-proven food allergy. J Eur Acad Dermatol Venereol. 2023;37(5):984–1003.
    2. [2] Muraro A, Werfel T, Beyer K, et al. EAACI food allergy and anaphylaxis guidelines: diagnosis and management of food allergy. Allergy. 2014;69(8):1008–1025.
    3. [3] Oykhman P, Ben-Shoshan M, Abrams EM, et al. Dietary Elimination for the Treatment of Atopic Dermatitis: A Systematic Review and Meta-Analysis. J Allergy Clin Immunol Pract. 2022;10(10):2657–2666.
    4. [4] Natsume O, Kabashima S, Nakazato J, et al. Two-step egg introduction for prevention of egg allergy in high-risk infants with eczema (PETIT). Lancet. 2017;389(10066):276–286.

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