• Lactose Intolerance Breath Test - The National Blood Test Clinic
  • Lactose Intolerance Breath Test - The National Blood Test Clinic
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Lactose Intolerance Breath Test

Lactose Intolerance Breath Test

£257.00 GBP
£257.00 GBP
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IBTL

Bloating, abdominal pain, diarrhoea, and excessive gas after consuming milk or dairy products may signal lactose intolerance. It is the inability to properly digest lactose, the sugar found in dairy products, due to insufficient production of the digestive enzyme lactase in the small intestine.

The Lactose Intolerance Breath Test measures hydrogen and methane levels in the breath after lactose ingestion, helping to identify whether the body struggles to digest milk sugar effectively.

Why the Lactose Intolerance Test Matters?

Lactose intolerance is one of the most common digestive conditions, caused by reduced levels of the enzyme lactase. Undiagnosed intolerance can lead to ongoing discomfort, poor nutrient absorption, and unnecessary dietary restrictions. The breath test for Lactose Intolerance provides clear evidence to guide you toward the right nutritional adjustments for better digestive health. 

What Gets Assessed?

Our private Lactose Intolerance Test offers a quick, easy, and accurate way to assess whether you are lactose intolerant.

  • Breath hydrogen and methane levels
  • Digestive response to lactose ingestion
  • Signs of lactose malabsorption and fermentation

Turnaround Time

  • 48 Hours

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How Our Test Works

  • Book Your Appointment Via The National Blood Test Clinic

    Place Your Order

    Place your order online and receive a test kit delivered to your home. Depending on the test, you may either provide your sample at home using the kit or bring it with you to your scheduled appointment at one of our partner sample collection clinics.

  • Blood Draw for Health Screening

    Attend Your Appointment

    Collect your sample using the kit provided, following the instructions. If a sample collection courier is not available, please seal your sample securely and return it using the prepaid packaging provided.

  • Test to Check Vitamin D Deficiency

    Receive Your Results

    Once your results are ready, you’ll receive an email notification to log in and view them securely via your private portal. Please note that your results will be reviewed by a qualified clinician when you book a consultation.

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FAQs

Who should take the Lactose Intolerance Breath Test?

This test is suitable for people who experience bloating, cramps, diarrhoea, or gas after consuming milk, cheese, or other dairy products.

How is the test carried out?

You will drink a lactose solution, and your breath will be analysed for hydrogen and methane gases, which indicate lactose malabsorption.

How long does the test take?

The Lactose Breath Test usually takes about 2–3 hours with multiple breath sample collections.

Is this test suitable for children?

Yes, the test can be performed on children who may have suspected lactose intolerance or difficulty digesting dairy.

What if the test shows lactose intolerance?

Your healthcare provider may recommend a lactose-free diet, use of lactase enzyme supplements, or alternatives such as lactose-free milk.