Casein Allergy Test

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testsTotal tests included (0)


    blood sample




    Age group

    Above 10 years

    Have you ever encountered a skin allergy immediately after consuming milk or milk products? It could be due to casein present in the milk. Casein is a milk protein, usually found in cow’s milk or products made from it.

    A casein allergy test is essential to confirm the allergy because the allergic reactions are often confused with symptoms of lactose intolerance. While some symptoms may be similar, a milk protein allergy test using specific IgE testing distinguishes the condition.

    A casein allergy occurs when your immune system identifies casein as a harmful molecule entering the body. As a result, your body suffers from a severe immunological response to neutralise the milk protein.

    Apollo 24|7 has a dedicated milk protein allergy test to assist you in being aware of your condition. Below are the symptoms you can notice before going for a casein allergy test:

    • Rashes on the skin
    • Difficulty in breathing
    • Severe pain in the stomach
    • Digestive issues 
    • Malabsorption of food
    • Vomiting and diarrhoea
    • Anaphylactic shock in severe cases
    • Swelling on lips, tongue, throat, and face
    • Nasal congestion
    • Runny nose
    • Itchiness in eyes 
    • Continuous sneezing

    It is suitable to go for a milk allergy test for young children and infants because these allergies are common. Also, infants mostly rely on milk for their nutrition, so a casein allergy test is a precautionary step to avoid severe complications.

    Generally, breastfed infants are less likely to develop a casein allergy. Moreover, kids outgrow their milk allergy by the time they reach five years of age. In rare cases, children cannot do so and taking a milk protein allergy test can help manage the condition.

    People who are tested positive for a milk allergy test need to avoid the following food items:

    • All forms of milk
    • Butter and ghee
    • Yogurt and curd
    • Cheese and its derivatives
    • Ice-creams
    • Milk cream and its derivatives
    • Custard and pudding 
    • Any bakery item made of milk or its derivatives

    People with a family history of milk allergy are more likely to develop this condition.

    A casein allergy test is a simple blood test that hardly takes 5 minutes to complete the procedure. In this test, a specific IgE is tested, which acts against the milk protein and triggers a chain of reactions in the body.

    The technique used in the milk allergy test is known as flow cytometry analysis. This is a scientific technique to assess different parameters related to the cell using a cell sorting mechanism and to attach a fluorescent probe to the surface markers.

    A casein allergy test may also use the skin prick method to collect the blood sample. This simple technique uses an agglutination kit to test the presence of allergies. However, the flow cytometry is more accurate than the agglutination reaction in the milk protein allergy test. 

    Medically reviewed by Dr Jatin Ahuja, Infectious Diseases, Apollo Hospitals Indraprastha, South Delhi.

    faqFrequently Asked Questions (FAQs)

    Frequently asked questions

    Yes. If the child fails to outgrow their milk allergy by age 5, it is necessary to avoid all forms of milk. Failing to do so might lead to severe allergic reactions in the body. This is because the immune system will remain activated against casein and cause allergy symptoms.
    No. The casein allergy test does not necessarily show severe reactions in an individual’s body. The severity of the reaction varies from person to person and depends on several genetic factors. However, it is essential to go for a milk protein allergy test to understand the intensity of the reaction.
    Once your casein allergy test comes out to be positive, you can take the following measures to manage the condition:  Find alternatives to get complete nutrition through your diet Look for dairy substitutes that don’t contain casein but provide similar nutritional value Read the label on each food package carefully to avoid your allergic reaction Consult with your nutritionist and curate a personalised diet plan
    Below are some substitutes for casein-based products:  Soy and potato-based milk Soy-based protein-rich products like Tofu Non-dairy creams Coconut butter Plant-based soups Plant-based cooking butter
    No. As per the milk allergy test, lactose intolerance and casein allergy are two different conditions. The former is a condition where an individual cannot digest milk protein. During this condition, they generally produce digestive ailments. However, the latter is an immune disorder due to which the immune system attacks casein continuously.

    Why should Apollo be your preferred healthcare partner?

    • 40 Years of legacy and credibility in the healthcare industry.
    • NABL certified multi-channel digital healthcare platform.
    • Affordable diagnostic solutions with timely and accurate test results.
    • Up to 60% discount on Doorstep Diagnostic Tests, Home Sample Collection.
    • An inventory of over 100+ laboratories, spread across the country, operating out of 120+ cities with 1200+ collection centers, serving over 1800+ pin codes.

    The information mentioned above is meant for educational purposes only and should not be taken as a substitute to your Physician’s advice. It is highly recommended that the customer consults with a qualified healthcare professional to interpret test results