What's this test for?

This test is ideal if you're experiencing digestive discomfort, bloating, skin issues, or fatigue after eating eggs or egg-containing foods. It measures your immune system's IgG4 antibody response to whole egg proteins, which can help you understand whether eggs might be contributing to ongoing symptoms. Many people use this test to guide decisions about eliminating or reintroducing eggs in their diet.

What's included in this test?

This test focuses on a single, targeted measurement: your IgG4 antibody response to whole egg protein. IgG4 antibodies are part of your immune system's response to foods, and elevated levels are sometimes associated with food sensitivities that can show up as digestive, skin, or energy-related symptoms. Testing this one marker gives you a clear, focused answer about your body's reaction to eggs specifically.

What happens after I get my results?

Your results will be available in your account, with your IgG4 level explained alongside the normal reference range so you know exactly what your number means. If your level comes back elevated, a practical next step is trying a short-term elimination of eggs and egg-containing foods, then tracking how you feel before slowly reintroducing them. The standard lab report can be downloaded directly from your account, and you can use the trends feature to track your levels over time if you retest later. If you notice severe reactions like swelling or trouble breathing after eating eggs, seek medical care right away.

How can I naturally support a healthy response to food sensitivities?

Simple diet changes can go a long way in managing food sensitivity symptoms. Try keeping a food and symptom journal to spot patterns, gradually reducing your intake of the suspected trigger food, and focusing on whole, minimally processed foods that are easier on digestion. Supporting your gut health with fiber-rich foods and probiotics may also help reduce overall sensitivity reactions over time.

When will I get my results?

Results for this test are typically ready within about 7 days of your lab visit. Once processed, they'll be uploaded directly to your secure online account, and you'll be notified as soon as they're ready to view.

Who should consider this test?

This test is a good fit for anyone who suspects eggs might be triggering symptoms like bloating, skin breakouts, headaches, or fatigue but hasn't been able to pinpoint the cause. It's also useful for people who eat eggs frequently and want to rule out a hidden sensitivity as part of a broader wellness check. If you've already tried eliminating other common trigger foods without relief, testing for egg sensitivity can help narrow things down.

What symptoms indicate I may need this test?

Common signs that prompt people to test include bloating, stomach cramps, diarrhea or constipation, skin rashes or eczema flares, headaches, and unexplained fatigue that seems to follow meals containing eggs. If these symptoms show up repeatedly after eating eggs or foods made with eggs, it may be worth investigating further. Keep in mind these symptoms can have many causes, so this test is one piece of the puzzle.

What does a high IgG4 result mean?

A high result means your immune system is producing more antibodies in response to egg proteins than is typical, which some people associate with food sensitivity symptoms. This doesn't mean you have a true food allergy, but it may be worth reducing egg intake for a few weeks to see if your symptoms improve. Reintroducing eggs slowly afterward can help you confirm whether they were actually the trigger.

What causes a high IgG4 response to eggs?

Frequent, repeated exposure to a food is one of the most common reasons IgG4 levels rise, since your immune system builds up a response over time with regular consumption. Gut health issues, such as increased intestinal permeability, can also make it easier for food proteins to trigger an immune reaction. Genetics and overall immune system sensitivity may play a role as well.

How often should I retest?

If you make dietary changes based on your results, retesting after 3 to 6 months can help you see whether your IgG4 levels have changed. This gives your body enough time to respond to reduced egg exposure or other lifestyle adjustments. Using the trends feature in your account makes it easy to compare results side by side over time.

Getting your blood test with us is easy, private & backed by the power of science.Long story short: In the test options, use the filters or search box to narrow your choices and find the test you want. 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. 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. 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. 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. 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. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy! If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com 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 support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.

When will my lab results be available?

Most test results will be available within 1–3 business days. Once they're ready, we'll send an email and text message to let you know. After your blood draw, just hang tight and don't worry – we'll keep you updated and in the loop! If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com, and we'll gladly help you.

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 support@privatemdlabs.com. 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 support@privatemdlabs.com.

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 support@privatemdlabs.com. 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 support@privatemdlabs.com and we'll gladly help you.

Egg Whole IgG4 Test - Food Sensitivity Check

Getting your blood test with us is easy, private & backed by the power of science.

Long story short:

In the test options, use the filters or search box to narrow your choices and find the test you want.
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.
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.
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.
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.
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.
You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!

754-799-7833

[email protected]

Egg Whole IgG4 Food Sensitivity Blood Test

Egg Whole IgG4

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

What's this test for?

What's included in this test?

What happens after I get my results?

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

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Egg Whole IgG4 Food Sensitivity Blood Test

Prescription & all lab fees included

Doctor's guidance included

Fast & convenient

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