Distinguishing a milk allergy from lactose intolerance matters, since they’re different conditions with different underlying causes — one is immune-related, the other digestive. This test checks specifically for an IgE antibody response to milk proteins, giving you a clearer answer than symptoms alone can provide. No doctor’s visit required.
Also Known As
Milk Allergy Test, Allergen Profile for Milk
Purpose of the Dairy Allergy Test
A blood test for dairy allergy helps diagnose allergic reactions to milk and other dairy products. Positive results allow for the prescription of antihistamine medication.
What Does the Dairy Blood Test Measure?
Dairy allergy testing detects immunoglobulin E (IgE), which is an antibody released in high amounts to fight off allergens in the body. Allergens are generally harmless, but the immune system mistakenly tags them as harmful substances.
For dairy products like whole milk, cheese, yogurt, etc., the allergic reaction is usually triggered by the alpha S1-casein protein found in the cow’s milk, leading to the production of increased IgE. However, in some cases, other milk proteins are identified as the culprits.
The following are the specific tests included in a dairy allergy test panel.
- Alpha-lactalbumin test
- Beta-lactoglobulin test
- Casein test
- Cheddar Cheese
- Cheese, mold type
Who Should Take a Blood Test for Milk Allergy?
You should take the test for dairy allergy if symptoms appear for over two weeks. If allergic reactions show up after consuming dairy, inform your doctor to confirm the medical connection.
Here are milk allergy symptoms to check out:
- Watery eyes
- Abdominal pain
- Nasal congestion
- Nausea and vomiting
- Coughing and wheezing
- Skin rashes (hives) and itchiness
- Diarrhea or loose stool with blood
- Swollen lips, face, tongue, and other body parts
It’s important to test for dairy allergy at the onset of the symptoms. Otherwise, you might increase your risk of anaphylaxis, which is a potentially fatal shock caused by allergies. This can be characterized by low blood pressure, weak pulse, breathing difficulty, narrow airways, severe digestive distress, rapid skin rash, and even death.
Dairy Allergy Blood Test Preparation
No special preparation is necessary prior to blood sample collection.
Dairy Allergy Test Panel Results
In the panel report, specific IgE is shown for each marker (alpha-lactalbumin, beta-lactoglobulin, casein, cheese, and milk). If your test results show a value higher than 0.10 kU/L, it confirms the elevation of IgE, which suggest milk or dairy allergy.
Getting such test results will direct your healthcare provider to prescribe antihistamine medications and restrict dairy consumption.
Where Can I Get Milk Allergy Testing Done Near Me?
You can get tested for milk allergy by booking the test online and following these steps.
Step 1: Go to our website’s food allergy tests section and order the dairy allergy test panel. Download the lab test order, which serves as your doctor’s order for the bloodwork.
Step 2: Find an affiliate medical laboratory near you using our lab locator.
Step 3: Visit the laboratory you chose to have your blood sample drawn for analysis.
Step 4: Wait for the lab test results within 2-10 business days in your Personalabs account.
For an exact turnaround time for results, please contact us at 1-888-438-5227. We will contact the lab of your choice (Quest Diagnostics or Labcorp) as turnaround times vary depending on testing location or lab testing provider.
Frequently Asked Questions About The Milk Allergy Test:
Q: What’s the difference between a milk allergy and lactose intolerance?
A: A milk allergy is an immune system response to milk proteins and can be serious, while lactose intolerance is a digestive issue related to an enzyme deficiency — this test checks specifically for the allergy, not intolerance.
Q: Do I need to fast before this test?
A: No fasting is required.
Q: Is this test accurate for both children and adults?
A: Yes, IgE allergy testing is used across age groups, though a doctor’s guidance is recommended when interpreting results for children.
Q: What if my milk allergy test is positive?
A: Share your results with your doctor or an allergist to discuss avoidance strategies and whether further evaluation is needed.
