How to Recognize Food Allergies

Food allergies occur when the human body becomes oversensitive towards food (in medical terms this is known as hypersensitivity towards food). The cause of the food allergy can vary but usually you can recognize food allergies because the symptoms (also known as hypersensitive reactions) are very similar regardless of what type of food caused them. It is important to know what type of food you are allergic to in order to prevent allergic reactions in future.


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    Find out what is causing the allergy: The following food sources or categories are the most common causes of allergy symptoms.
    • Dairy products such as milk or eggs.
    • Fruits and vegetables (including dried fruits).
    • Nuts such as cashews, peanuts and walnuts.
    • Seafood such as clam, fish or shrimps.
    • Soybeans.
    • Wheat.
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    Look for the symptoms: At least 1 of these symptoms will usually occur immediately after you touch or eat the food that you are allergic to.
    • Dizziness.
    • Fainting.
    • Itching on your face or neck, especially on your mouth, lips, throat or tongue.
    • Swelling, which also usually occurs on the face or neck.
    • Difficulty breathing or swallowing (a side-effect of an itchy or swollen throat).
    • Watery or stuffy nose.
    • Stomach aches (a sign that you are having difficulty digesting the food that you are allergic to).
    • Vomiting.
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    Seek professional consultation: An allergy specialist is a medical professional that can perform various tests to determine exactly what you are allergic to. Here are some tests that a specialist might use to recognize food allergies.
    • Blood test: The doctor will take a sample of your blood to measure the amount of antibodies that it contains. An abnormal amount of antibodies in your blood indicates that you are allergic to food.
    • Elimination test: The food that is suspected to be causing allergic reactions is completely removed from your daily diet. After that, mixes of other food types are incorporated into your diet. If you still show allergy symptoms, it means that there are more food sources or categories that you are allergic to and they are also eliminated from your diet. This test continues until all of the food types that you are allergic to can be eliminated from your diet.
    • Skin test: In a skin test, your skin is pricked lightly. The pricked area is then exposed to the food that you are allergic to (or just the part or extract of the food that causes the food allergy such as the protein). Swelling or redness of the skin indicates that you are allergic to the type of food that your skin was exposed to.


  • After proper diagnosis, most allergies can be treated without further complications using anti-allergy drugs such as antihistamines or antibiotics.


  • Get help immediately if you suffer from severe symptoms such as breathing difficulties. You or someone you know should call the emergency services for emergency help.

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Categories: Allergies and Immunization