What's this test for?

This test is ideal if you're experiencing unexplained digestive discomfort, bloating, stomach pain, or other symptoms after eating certain foods. It helps identify hidden food sensitivities by measuring IgG4 antibody reactions to 10 specific foods that commonly trigger symptoms. Many people use this test when they suspect certain foods are causing problems but can't pinpoint which ones are the culprits.

What happens after I get my results?

You'll receive detailed doctor notes in simple language explaining which foods triggered IgG4 antibody reactions and how these sensitivities may relate to your symptoms. These notes include personalized dietary recommendations, elimination strategies, and guidance on reintroducing foods safely. You'll also get the standard lab report and can track your antibody levels over time using our trends feature to monitor improvements as you adjust your diet.

What's included in this test?

This panel measures IgG4 antibody reactions to Black Pepper, Cauliflower, Clam, Green Pea, Lettuce, Lobster, Peach, Sesame Seed, Sweet Potato, and Walnut. This panel measures IgG4 antibody reactions to 10 common foods that frequently cause sensitivities. These specific foods were selected because they're commonly consumed but often overlooked as potential triggers for digestive issues, skin problems, fatigue, and other symptoms. By testing your immune response to each food, this panel helps you identify which items may be causing inflammation or discomfort in your body.

How should I prepare for this test?

For the most accurate results, continue eating your normal diet including the foods being tested in the weeks leading up to your test. Your body needs recent exposure to these foods to produce detectable IgG4 antibodies. Avoid fasting before the test, and make sure you're well-hydrated. If you've already eliminated certain foods from your diet, your antibody levels may be lower and results less informative for those items.

When will I get my results?

Results are typically available within 5-7 business days after your sample reaches the lab. You'll receive an email notification when your results are ready to view in your secure online account. The turnaround time allows for the specialized testing required to measure IgG4 antibody levels accurately.

Who should consider getting this test?

This test is ideal for people experiencing unexplained digestive issues like bloating, gas, diarrhea, or stomach pain that seem related to eating. It's also helpful for those with chronic fatigue, headaches, skin problems, or joint pain that haven't been explained by other tests. Anyone who suspects certain foods are causing symptoms but isn't sure which ones should consider this panel.

What symptoms indicate I may need this test?

Common symptoms that suggest food sensitivities include bloating, gas, stomach cramps, diarrhea, or constipation that seem to worsen after meals. You might also experience headaches, fatigue, brain fog, skin rashes, joint pain, or general inflammation that doesn't have an obvious cause. If you notice patterns where you feel worse after eating but can't identify specific trigger foods, this test can help.

How can I manage food sensitivities naturally?

Start by eliminating identified trigger foods for 4-6 weeks to allow inflammation to decrease and your gut to heal. Support your digestive health with probiotic-rich foods like yogurt, kefir, and sauerkraut, and consider digestive enzymes with meals. Focus on anti-inflammatory foods like leafy greens, fatty fish, berries, and bone broth. After the elimination period, you can try reintroducing foods one at a time to see if symptoms return.

What is IgG4 and why does it matter?

IgG4 is a type of antibody your immune system produces in response to repeated exposure to certain foods. Unlike IgE antibodies that cause immediate allergic reactions, IgG4 antibodies are associated with delayed food sensitivities that can cause symptoms hours or even days after eating. Elevated IgG4 levels to specific foods suggest your immune system is reacting to those foods, which may contribute to chronic inflammation and various symptoms.

How often should I retest my food sensitivities?

If you eliminate trigger foods and follow dietary recommendations, consider retesting in 6-12 months to see if your antibody levels have decreased. Some people's sensitivities improve over time with gut healing and avoidance, potentially allowing reintroduction of foods. If you're experiencing new symptoms or want to test different foods, you can retest sooner. Annual testing can be helpful for monitoring long-term progress.

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.

Food Sensitivity Test - IgG4 Panel for Digestion

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]

Blood Test for Food Sensitivities and Digestive Issues

IgG4 Food Panel IV

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

What's this test for?

How should I prepare for this test?

What's included in this test?

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

Blood Test for Food Sensitivities and Digestive Issues

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

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