What's this test for?

This test is ideal if you're experiencing digestive upset, skin issues, or unexplained fatigue after eating certain foods. It measures your immune system's IgG antibody response to orange, which can help you figure out if orange is a trigger for your symptoms. Many people use this test to narrow down food sensitivities that regular allergy tests might miss.

What's included in this test?

This test measures one specific marker: your IgG antibody response to orange. IgG antibodies are part of your immune system's memory, and elevated levels to a specific food can be linked to delayed sensitivity reactions like bloating, headaches, or skin flare-ups that show up hours or even days after eating.

What happens after I get my results?

Your results will show up in your account with a clear explanation of what a normal versus elevated antibody level looks like. If your IgG level to orange is high, a simple next step is to remove orange and orange-based products from your diet for a few weeks and see if your symptoms improve, then reintroduce it slowly. You can download a standard lab report from your account at any time, and if you retest later, the trends feature lets you track how your antibody level changes over time.

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

Eating a varied diet with less processed food can reduce overall immune stress on your gut. Foods rich in probiotics, like yogurt or fermented vegetables, may help support gut lining health, which plays a role in how your body reacts to foods. Reducing stress and getting enough sleep also helps keep your immune system balanced.

When will I get my results?

Results are typically ready within about 7 days of your lab visit. Once ready, they'll be posted directly to your online account, where you can view and download them at your convenience.

Who should consider this test?

Anyone who notices recurring symptoms like bloating, headaches, skin rashes, or fatigue after eating oranges or citrus products might benefit from this test. It's also useful for people who suspect a food sensitivity but haven't been able to pinpoint the exact cause. This test is a good next step when you want data to guide an elimination diet.

What symptoms indicate I may need this test?

Common signs include stomach cramps, bloating, gas, diarrhea, headaches, joint pain, skin rashes, or brain fog that seem to follow eating patterns involving citrus. If these symptoms show up hours or a day after eating orange or orange-containing foods, it may be worth checking your IgG response. Keeping a food and symptom diary can help you decide if this test makes sense for you.

What does high IgG to orange mean?

A high result means your immune system has built up antibodies that react to orange, which some research links to delayed food sensitivity symptoms. This doesn't mean a true allergy, which is usually more immediate and severe. It's a signal worth exploring with an elimination diet to see if cutting out orange improves how you feel.

How often should I retest?

If you make dietary changes based on your first result, retesting after 8-12 weeks can show whether your antibody levels have gone down. Regular retesting once or twice a year can also help you track whether new sensitivities are developing. Retest sooner if your symptoms change significantly.

What should I do if my results are abnormal?

If your IgG level to orange comes back elevated, try removing orange and related citrus products from your diet for several weeks and track your symptoms. Slowly reintroduce the food afterward to see if symptoms return, which can help confirm the connection. If symptoms are severe or don't improve, seek medical care to rule out other causes.

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.

Orange IgG 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]