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Lactose tolerance test for people with digestive discomfort after eating dairy

Lactose Tolerance Test — Dairy Digestion Blood Test

Lactose Tolerance Test, 5 Specimens (50g)

  • Check dairy digestion and stomach discomfort
  • Detect lactose intolerance causing bloating
  • Track blood sugar response after dairy
$528
First results as soon as overnight*

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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
  • 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

What's this test for?

This test is ideal if you're experiencing bloating, gas, diarrhea, or stomach cramps after eating dairy products like milk, cheese, or ice cream. It helps figure out whether your body has trouble breaking down lactose, the sugar found in milk. Instead of guessing which foods are causing your discomfort, this test gives you a clear answer.

What's included in this test?

This test measures how your blood sugar responds after drinking a lactose solution, taken across five separate blood draws over a couple of hours. Tracking multiple points in time shows whether your body is properly breaking down and absorbing lactose, which single-draw tests can't capture. This step-by-step pattern is what makes it possible to spot lactose intolerance accurately.

What happens after I get my results?

Your results will show up in your account, with each measurement explained alongside its normal range so you know exactly what it means. If your results point to lactose intolerance, simple next steps include cutting back on dairy, trying lactose-free products, or using lactase supplements before meals. Your standard lab report is available to download anytime, and you can use the trends feature to track how your body responds if you retest later or after changing your diet.

How should I naturally support digestion if I'm lactose intolerant?
Try smaller portions of dairy at a time instead of cutting it out completely, since many people can tolerate small amounts. Pairing dairy with other foods, choosing aged cheeses or yogurt (which are naturally lower in lactose), and adding a lactase enzyme supplement before meals can also help. Probiotic foods like kefir or fermented vegetables may support your gut's ability to handle lactose over time.
When will I get my results?
Results are typically ready within about 7 days of your blood draws. Once processed, they'll be uploaded directly to your account where you can view and download them. You'll get a notification as soon as your report is ready to view.
Who should consider this test?
Anyone who notices digestive symptoms like bloating, gas, or diarrhea after eating dairy should consider this test. It's especially useful if you've been avoiding dairy out of suspicion but want a clear, confirmed answer rather than guessing. People with a family history of lactose intolerance may also want to check their own status.
What symptoms indicate I may need this test?
Common signs include bloating, stomach cramps, gas, diarrhea, or nausea within 30 minutes to two hours after consuming dairy foods. Some people also notice these symptoms getting worse over time or after eating larger amounts of dairy. If these symptoms sound familiar, this test can help confirm whether lactose is the trigger.
What is lactose intolerance and why does it matter?
Lactose intolerance happens when your small intestine doesn't make enough of an enzyme called lactase, which is needed to break down the sugar in milk. Without enough lactase, undigested lactose moves through your gut and causes bloating, gas, and diarrhea. Understanding this helps you make smarter food choices and avoid unnecessary discomfort.
What does a flat or low blood sugar response mean on this test?
If your blood sugar doesn't rise much after drinking the lactose solution, it suggests your body isn't breaking down and absorbing lactose properly. This pattern is consistent with lactose intolerance. Reducing dairy intake, switching to lactose-free alternatives, or trying lactase supplements are practical next steps.
What should I do if my results show lactose intolerance?
Start by gradually reducing dairy in your diet and switching to lactose-free milk, cheese, or plant-based alternatives. Lactase enzyme supplements taken before meals with dairy can also help reduce symptoms. If symptoms are severe or don't improve with these changes, seek medical care to rule out other digestive conditions.
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.

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Results explained in simple language
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Fast & confidential, we never sell or share your data
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Demo results
Blood Glucose Response (post-lactose) 8 mg/dL rise
Demo results
Flat Response (<20 mg/dL rise) Normal Response (20-50 mg/dL rise) High Response (>50 mg/dL rise)
8 mg/dL rise

What this means

A rise of only 8 mg/dL after drinking the lactose solution suggests your body isn't absorbing lactose well, which points to lactose intolerance. A healthy response usually shows a bigger jump in blood sugar as lactose is broken down and absorbed. This flat pattern, especially if paired with symptoms like bloating or diarrhea, supports a lactose intolerance diagnosis.

* 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
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Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
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Lactose Tolerance Test — Dairy Digestion Blood Test

  • Check dairy digestion and stomach discomfort
  • Detect lactose intolerance causing bloating
  • Track blood sugar response after dairy
$528
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.