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IgG4 food sensitivity panel for identifying trigger foods causing digestive discomfort

IgG4 Food Sensitivity Panel Blood Test

IgG4 Food Panel V

  • Identify foods causing digestive discomfort
  • Screen for hidden food sensitivities
  • Track symptoms linked to specific foods
$1078
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First results as soon as overnight*

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

  • Many results come back overnight *
  • 90-day money back guarantee
  • Save time & skip the doctor’s office
  • Lab visit as quick as 10 minutes
  • Results explained, with clear next steps
  • LegitScript certified
  • No questions asked refunds
  • The price you see is the price you pay

Prescription & all lab fees included

Go directly to the lab, no extra fees

Doctor's guidance included

Easy to understand results

Fast & convenient

Lab visit as quick as 10 mins in & out

All results normal? Get your money back. First-time customers only. File a support ticket titled “Money Back Guarantee” with your order number within 15 days of receiving your results. STD, Sickle Cell, and gift orders aren’t eligible. Full terms apply. guarantee
No questions asked refunds
LegitScript certified

What's this test for?

This test is ideal if you're experiencing ongoing digestive issues, bloating, skin problems, or fatigue that seem to be linked to certain foods but you can't pinpoint which ones. It looks for immune reactions to a wide range of common foods that could be contributing to your symptoms. It's a helpful starting point if you suspect food is playing a role in how you feel but haven't been able to figure out a pattern on your own.

What's included in this test?

This panel screens your immune reaction to a broad range of common foods, including dairy, grains, eggs, nuts, meats, vegetables, and fruits. Testing across many food categories at once matters because sensitivities can involve multiple foods simultaneously, and reactions are often not obvious from diet alone. Covering this many items gives you a fuller picture instead of guessing food by food.

What happens after I get my results?

Your results will be available in your account, with each food item's value and normal range clearly explained so you know exactly what was tested. If certain foods show elevated reactivity, a practical next step is to try removing them from your diet for a few weeks and watching for symptom changes, then reintroducing them one at a time. You can download the standard lab report from your account at any time, and if you retest later, the trends feature lets you track how your results change over time.

How can I naturally support digestive health while identifying trigger foods?
Keeping a simple food and symptom journal alongside your test results can help you connect the dots between what you eat and how you feel. Eating more whole, unprocessed foods and staying hydrated supports your gut while you work through an elimination process. Probiotic-rich foods like yogurt or fermented vegetables may also help calm digestive irritation. Reducing highly processed foods and added sugars tends to ease symptoms for many people regardless of specific sensitivities.
When will I get my results?
Results are typically ready within about 7 days of your sample being processed at the lab. You'll get a notification as soon as they're posted to your secure online account. This timeframe allows the lab to carefully test your sample against the full panel of foods included.
Who should consider this test?
This test is a good fit for anyone dealing with unexplained digestive discomfort, bloating, skin flare-ups, headaches, or fatigue that seems tied to eating. It's also useful if you've already tried cutting out common allergens without full relief and want a broader look at less obvious food triggers. People managing conditions like eczema, IBS-type symptoms, or chronic fatigue often use this as a tool to narrow down dietary contributors.
What symptoms indicate I may need this test?
Common signs include bloating, gas, stomach cramps, diarrhea or constipation, skin rashes or eczema, headaches, joint pain, or unexplained fatigue that shows up after eating. If these symptoms come and go without a clear cause and seem to worsen after certain meals, food sensitivities could be a contributing factor worth investigating. Tracking symptoms alongside meals for a week or two before testing can also help you get more out of your results.
What does a high reactivity result mean for a specific food?
A high result for a food means your immune system is showing an elevated response to that item, which for some people is linked to symptoms like bloating, skin issues, or fatigue after eating it. This doesn't necessarily mean a true allergy, but it can be worth reducing or eliminating that food for a few weeks to see if your symptoms improve. Reintroducing the food slowly afterward can help confirm whether it's truly a trigger for you.
How often should I retest?
Many people retest every 6 to 12 months, especially after making dietary changes based on their first results, to see if reactivity levels have shifted. If you've eliminated trigger foods and want to check whether your body's response has calmed down before reintroducing them, retesting sooner can be useful. Using the trends feature lets you compare results side by side over time.
What should I do if my results show several food sensitivities?
Start by focusing on the foods with the highest reactivity first rather than trying to eliminate everything at once, which can feel overwhelming. Remove those top items from your diet for 2 to 4 weeks and track your symptoms closely during that window. If your symptoms are severe or you notice signs of a serious reaction like difficulty breathing or swelling, seek medical care right away, since this test is not designed to detect true food allergies.
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.

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Get lab order in minutes, results come overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
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Demo results
IgG4 Reactivity to Cow's Milk 18.4 U/mL
Demo results
Low Reactivity (0-6) Moderate Reactivity (6-15) High Reactivity (>15)
18.4 U/mL

What this means

Your immune system shows a high reactivity level to cow's milk, which for some people is associated with bloating, digestive discomfort, or skin issues after consuming dairy. This is a food sensitivity marker, not a true allergy test, so it reflects a pattern worth exploring rather than an emergency finding.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More advanced tests may take longer due to complexity.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
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Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

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IgG4 Food Sensitivity Panel Blood Test

  • Identify foods causing digestive discomfort
  • Screen for hidden food sensitivities
  • Track symptoms linked to specific foods
$1078
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.
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For informational purposes only. Not medical advice.