Can I develop food allergy symptoms several days later?

Louise Goldberg
Nutrition & Dietetics

No. The symptoms develop within minutes or up to 2 hours after a person has eaten food that contains the allergen. If you experience similar symptoms over 2 hours later, see your doctor to rule out other possibilities.

The only exception is that a breastfed baby may develop symptoms between 2 and 8 hours after mom has ingested the allergen.


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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.