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Lactose Breath Test – Figure 1 of 3

Breath gas test

Lactose Breath Test

Detect lactose intolerance reliably — no blood draw, no doctor's visit. Hydrogen (H₂) and methane (CH₄) in your breath show exactly whether your body can process milk sugar.

€65,00 incl. VAT · shipping and returns included
View instructions

No prescription needed. Ships the next working day.

Sample typeAtemluft, 5 Zeitpunkte
MethodGaschromatographie
Turnaround7–21 days from sample arrival
AnalysisPartner laboratory in Germany
Evaluation usually takes 7–21 days from the arrival of the sample at the laboratory, not from your order. As soon as your results are in, we let you know.
  • A direct function test Drink the lactose solution, then measure your breath for 3 hours
  • Gas chromatography Precise measurement of hydrogen and methane at the partner laboratory
  • Can be done at home No doctor's visit needed, about 3 hours in total
  • Results consultation included Evaluation by the expert team

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The principle

Measure first, then decide

Without measured values, any treatment is guesswork. We turn that around: the lab report first, the decision after.

Consultation to put the measured values in context
  1. 01
    Measure Hydrogen and methane in your breath at five time points, analysed at our partner laboratory in Germany.
    Lactose breath test · breath, 5 time points · 7–21 days from sample arrival
  2. 02
    See where you stand Every value appears in the lab report alongside the laboratory's reference range. You can see which values fall inside it and which do not.
    Lab report including a consultation
  3. 03
    Targeted, not generic Instead of a standard package, you take what your values point to — agreed with a practitioner.
    Initial consultation, 10 minutes, free of charge
  4. 04
    Measure again after a few months Running the same analysis a second time shows how the values have changed.
    Earliest sensible interval: 3 months

Ory experts are there for you

Doctors and non-medical practitioners (Heilpraktiker) from the Ory team are with you all the way — for the lab report and everything after.

Initial consultation

What a value means, and whether a supplement is right for you, is something to discuss with a practitioner. This page makes no recommendation and is no substitute for medical assessment.

Details

What this analysis covers

What is measured

Hydrogen (H₂) and methane (CH₄) in your breath at five time points over three hours — shows whether lactose is properly absorbed in the small intestine.

B110/T901 Hydrogen (H₂) in the breath A sign of bacterial fermentation of undigested lactose in the large intestine
B110/T901 Methane (CH₄) in the breath An additional marker, raised in some people instead of or alongside H₂

The biomarker reference explains what lies behind the numbers: how values interact, which cofactors are involved and which biochemical processes take place in the body — for all values and areas, not only this analysis.

To the biomarker reference

Who it's for

The lactose breath test suits bloating, stomach cramps, diarrhoea or a feeling of fullness after dairy, and irritable bowel symptoms whose cause is unclear.

What a single value means for you is something to discuss with a practitioner. This does not replace a medical assessment.

How it works

Four steps from order to lab report.

  1. 01 Kit arrives Sent the next working day, postage paid, to your door.
  2. 02 Drink the lactose solution After the baseline reading, drink the lactose solution supplied.
  3. 03 Measure your breath Blow into a tube at 5 time points (0, 30, 60, 120, 180 min).
  4. 04 Receive your lab report 7–21 days after the sample arrives, consultation included.

Instructions

The main points first:

  • Start on an empty stomach and take the baseline reading before drinking the lactose solution.
  • After drinking it, blow into a tube at 30, 60, 120 and 180 minutes.
  • Label all 5 tubes and send them in together.

Please read the instructions carefully. Correct preparation matters: it is what allows your sample – stool, urine, saliva or blood – to be evaluated cleanly and meaningfully.

View full illustrated instructions

Sending your sample back

So that your sample reaches the laboratory safely, please follow the rule for your country.

Country Postage Shipping
GermanyAlready paidReturn postage is prepared, you do not need to add a stamp.
AustriaPay postage yourselfTo our address in Vienna, not to Germany.
SwitzerlandPay postage yourselfSeparate return bag for Switzerland, sent to Germany.
Rest of EuropePay postage yourselfSent to Germany.

In short: Germany, nothing to do. Austria, add postage and send to Vienna. Switzerland, add postage, use the special bag, send to Germany. Rest of Europe, add postage and send to Germany.

Testing for families and couples

Testing together reveals connections that a single analysis cannot show. We need three things for it.

Clear details for each person For everyone tested we need a name and date of birth, so the laboratory can match everything correctly.
A separate email address Each person needs their own email address for secure digital access. Where that is not possible, we send the results as a PDF to one shared address.
Clear labelling Samples and forms must each be assigned to exactly the right person.

From three tests of the same analysis for one family you get 10 % off. Write to us and we will send you your own discount code.

Send an email

Reimbursement by private insurance

This is how a possible reimbursement by your private insurance works with us:

01 A short online consultation with one of our therapists We go through your symptoms and record a brief medical history.
02 A referral for the relevant lab tests After the consultation you receive a referral that you can submit to your private insurer.

Many private insurers cover the cost in full or in part – some not at all. That depends entirely on your policy. We support you through the process as best we can.

Supplements

Supplements for the areas this analysis covers

Which product suits you, and in what amount, is something you discuss with a practitioner after your lab report. This page recommends nothing.

Food supplements are no substitute for a balanced diet. The full range: Supplements