What's this test for?

This test is ideal if you're experiencing digestive discomfort, skin reactions, or other unexplained symptoms after eating foods containing lime. It checks whether your immune system is producing a specific antibody response to lime, which may point to a food sensitivity. Many people use this test to narrow down triggers behind bloating, hives, or fatigue that seem tied to certain meals.

What happens after I get my results?

Your results will show up in your account along with an explanation of what a normal versus elevated antibody level means. If your result is elevated, a simple next step is to reduce or eliminate lime from your diet for a few weeks and watch for symptom changes, then retest later to see if levels have dropped. You can download a standard lab report from your account at any time, and the trends feature lets you track this marker over time if you retest in the future.

Who should consider this test?

Anyone who notices a pattern of symptoms like stomach upset, skin irritation, or headaches after consuming lime or lime-flavored foods should consider this test. It's also useful for people who eat a lot of citrus and want to rule out a hidden sensitivity as a cause of ongoing discomfort. If you've already tried cutting out other common triggers without relief, this test can help you check one more possibility.

What symptoms indicate I may need this test?

Common signs include stomach cramps, bloating, gas, or diarrhea shortly after eating lime or foods with lime juice. Some people also notice skin issues like itching, rashes, or hives, or less obvious symptoms like headaches and fatigue. If these symptoms show up repeatedly after lime exposure, it's worth checking your immune response.

When will I get my results?

Results are typically ready within about 7 days of your lab visit. You'll get a notification once your report is available in your account, so there's no need to check back constantly. If you need results sooner for a specific reason, contact support to ask about options.

How can I naturally support food sensitivity management?

Keeping a food and symptom diary can help you spot patterns even before or after testing. Rotating your diet so you're not eating the same foods every day can reduce the chance of developing new sensitivities. Staying hydrated and eating a variety of whole foods also supports a healthy gut, which plays a big role in how your body reacts to certain foods.

What does high Lime IgG4 mean?

A high result means your immune system has produced more antibodies to lime than typical, which may suggest your body reacts to it more than other foods. This doesn't always mean you'll have obvious symptoms, but paired with symptoms it can support the idea that lime is a trigger for you. The most practical step is a short elimination trial to see if cutting lime out improves how you feel.

What causes a high IgG4 response to a specific food?

Frequent or repeated exposure to a food is one of the most common reasons the immune system builds up a stronger antibody response to it. Gut health also plays a role — if your digestive lining is more permeable than usual, food proteins can trigger more immune activity. Genetics and overall immune system sensitivity can also make some people more prone to these responses than others.

How often should I retest?

If you make a dietary change based on your results, retesting after 8-12 weeks is a reasonable timeframe to see if your antibody levels have shifted. If your first result was in the normal range and you're not having symptoms, there's usually no need to retest unless new symptoms develop. Tracking results over time in your account can help you see whether your levels are trending up or down.

What should I do if my results are abnormal?

Start by removing lime and lime-containing products from your diet for a few weeks and pay attention to whether your symptoms improve. Keeping a simple log of what you eat and how you feel can help confirm whether lime is really the culprit. If symptoms are severe or don't improve, or if you notice signs of a serious allergic reaction like swelling or trouble breathing, seek medical care right away.

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.

Lime 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

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