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Food sensitivity test for identifying hidden dairy protein triggers causing digestive discomfort

Blood Test for Dairy Sensitivity and Digestive Discomfort

Beta lactoglobulin (f77) IgG

Google
3,138 reviews
  • Pinpoint food sensitivities causing discomfort
  • Reveal hidden triggers behind digestive issues
  • Clarify the cause of unexplained bloating
First results as soon as overnight*

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

What's this test for?

This test is ideal if you're experiencing unexplained digestive issues like bloating, gas, stomach cramps, or discomfort after eating dairy products. It helps identify if your body is producing IgG antibodies against beta-lactoglobulin, a protein found in cow's milk, which may be triggering your symptoms. Many people use this test when they suspect dairy is causing problems but want to pinpoint the specific protein responsible.

How should I prepare for this test?

For the most accurate results, continue eating your normal diet including dairy products before the test. Avoiding the foods you're testing for can lead to falsely low antibody levels. No fasting is typically required for this food sensitivity test. If you're taking any immunosuppressive medications, consult with your healthcare provider as these may affect antibody levels.

What's included in this test?

Beta lactoglobulin (f77) IgG

This test measures your IgG antibody levels specifically against beta-lactoglobulin, which is one of the major proteins in cow's milk and dairy products. Elevated IgG antibodies can indicate a food sensitivity that may be causing delayed digestive symptoms, inflammation, or discomfort hours after consuming dairy. Unlike immediate allergies, IgG reactions are often subtle and harder to identify without testing.

What happens after I get my results?
You'll receive detailed doctor notes in simple language explaining what your beta-lactoglobulin IgG levels mean for your digestive health and food sensitivities. These notes include personalized recommendations like dietary modifications, elimination strategies, or alternative protein sources to try. You'll also get the standard lab report and can track your antibody levels over time using our trends feature to see how dietary changes are working.
When will I get my results?
Most food sensitivity tests are processed within 3-5 business days after your sample reaches the laboratory. You'll receive an email notification when your results are ready to view online. The turnaround time may vary slightly depending on the lab's current volume and your location.
Who should consider getting this test?
This test is ideal for people experiencing ongoing digestive issues like bloating, gas, or stomach discomfort that may be related to dairy consumption. It's also helpful for those who have tried eliminating dairy generally but want to know if specific milk proteins are the culprit, or anyone with unexplained skin issues, fatigue, or inflammation that could be food-related.
What symptoms indicate I may need this test?
Common symptoms include bloating, gas, stomach cramps, or diarrhea that occur several hours after eating dairy products. You might also experience skin issues like eczema or rashes, unexplained fatigue, brain fog, or joint discomfort. Unlike lactose intolerance which causes immediate symptoms, IgG food sensitivities can cause delayed reactions that make the connection to dairy less obvious.
How can I manage beta-lactoglobulin sensitivity naturally?
If your test shows elevated antibodies, try eliminating cow's milk dairy products for 4-6 weeks to see if symptoms improve. Consider alternative protein sources like goat or sheep milk products, which have different protein structures and may be better tolerated. Focus on gut-healing foods like bone broth, fermented vegetables, and omega-3 rich fish, and consider a probiotic supplement to support digestive health.
What is beta-lactoglobulin and why does it matter?
Beta-lactoglobulin is one of the main whey proteins in cow's milk and is not found in human breast milk. It's a common trigger for food sensitivities because some people's immune systems recognize it as a foreign substance and produce IgG antibodies against it. This immune response can cause inflammation and various symptoms throughout the body, particularly affecting digestion, skin, and energy levels.
What does a high beta-lactoglobulin IgG result mean?
High IgG antibodies to beta-lactoglobulin suggest your immune system is reacting to this dairy protein, which may be contributing to inflammation and your symptoms. This doesn't mean you have a life-threatening allergy, but rather a sensitivity that could be causing chronic, low-grade issues. Eliminating or reducing foods containing this protein may help reduce symptoms and inflammation over time.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
  3. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
  4. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
  5. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
  6. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.
How do I know which test to get?
In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option.

Just text or call us at 754-799-7833, email us at [email protected], and we'll gladly help you. We've got your back and reply quickly.
Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?
Absolutely! We totally understand that errors can happen. No worries, we're here to help you.

Just reach out to us via text at 754-799-7833 or shoot us an email at [email protected]. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you.

There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out.

Our lab requires an address to be listed to generate an order.
Do you accept health insurance?
Only HSA & FSA is accepted.

Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts.

This policy applies to all insurance companies, including federal health insurance programs like Medicare.

If you have any questions, please text us at 754-799-7833 or email [email protected].
Can I cancel my order?
Yes.

We get it – sometimes your needs change.

As long as your samples haven’t been collected yet, we’re happy to help you cancel your order.

If you have any further questions, please text us at 754-799-7833 or email [email protected].

You can read more about our cancellation policy here.
How can I find a lab location near me?
During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp).

Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym.

If you have any questions, please text us at 754-799-7833 or email [email protected] and we'll gladly help you.

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

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Instant orders, results often overnight*
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Demo results
Beta lactoglobulin (f77) IgG 12.5 U/mL
Demo results
Normal < 10 Elevated ≥ 10
12.5 U/mL

What this means

Your IgG antibody levels to beta-lactoglobulin are elevated, suggesting your immune system is reacting to this dairy protein. This may be contributing to digestive discomfort, bloating, or other symptoms you've been experiencing after consuming cow's milk products.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their complexity.
Here’s how easy it is to get blood work done on your terms
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Blood Test for Dairy Sensitivity and Digestive Discomfort

Google
3,138 reviews
  • Pinpoint food sensitivities causing discomfort
  • Reveal hidden triggers behind digestive issues
  • Clarify the cause of unexplained bloating

1,000,000+ blood tests later, here's what our customers say

Google reviews 3138 reviews Next
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.