How to Identify Food Allergies: Expert Advice on Symptoms, Diagnosis, and Treatment
- byPranay Jain
- 06 Jun, 2025
Food allergies can develop at any stage of life—even from birth. Many people live with food allergies without realizing it, especially when symptoms are subtle or appear late. Dr. Neeta Nayak, former senior resident and allergist at Delhi’s RML Hospital, explains how you can recognize food allergies and what steps to take for diagnosis and treatment.
Signs You Might Have a Food Allergy
Sometimes, allergies stay “silent” for years, with symptoms surfacing gradually. If you often experience gas, indigestion, or unexplained pimples on your face after eating certain foods, these could be hidden signs of an allergy.
According to the Mayo Clinic, more obvious symptoms include:
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Itching or hives on the skin
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Swelling of the face, lips, tongue, or throat
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Stomach pain, vomiting, or diarrhea
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Dizziness or fainting
If any of these symptoms occur shortly after eating a particular food, it is crucial to get evaluated.
How Are Food Allergies Diagnosed?
Doctors use several tests to confirm food allergies:
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Skin Prick Test: A small amount of suspected allergen is applied to your skin and lightly pricked. Swelling or redness at the site indicates a possible allergy.
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Blood Test: Measures Immunoglobulin E (IgE) antibodies that your body produces in response to allergens.
Whom Should You Consult?
For accurate diagnosis and treatment, it is best to consult both an allergist and a dietitian. They can identify the offending food and prepare a safe and nutritious diet plan tailored to your needs.
If you notice recurring symptoms after eating certain foods, don’t ignore them—consult a healthcare professional to protect your health and well-being.





