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Gut Health: Bloating & Gas Analysis from Marek Health

Labbrary Test GradeUseful
Your Fit Score
Not calculated

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A home breath kit that tracks hydrogen and methane across eight collection timepoints over three hours after a sugar drink, with a combined gas trend and carbon dioxide quality control.

Current price
$460
Sample
Breath
Turnaround
14 days
Access
At Home, Direct Lab, Lab Visit, Mail In, Order Online
Evidence & Key Facts
Source collectedLast source check September 8, 2026

Evidence basis. This named result reflects the sources and verification evidence listed on this page as of the date shown.

Best for

Microbiome

Standout strength

A home breath kit that tracks hydrogen and methane across eight collection timepoints over three hours after a sugar drink, with a combined gas trend and carbon dioxide quality control.

Important watch-out

The combined hydrogen-plus-methane trend is a calculated output. Carbon dioxide is a sample-quality check, and eight timepoints do not mean eight different biomarkers.

Gut Health: Bloating & Gas Analysis from Marek Health
Labbrary Test GradeUseful
Your Fit Score
Not calculated

Answer five questions to see how this panel matches your goals, budget, collection preferences, access, and support needs.

Calculate my fit

Labbrary's review, Fit Score, and basic comparison are free. The provider's panel, shipping, collection, clinician review, and other services are separate. About 2 minutes. No account required.

A home breath kit that tracks hydrogen and methane across eight collection timepoints over three hours after a sugar drink, with a combined gas trend and carbon dioxide quality control.

Current price
$460
Sample
Breath
Turnaround
14 days
Access
At Home, Direct Lab, Lab Visit, Mail In, Order Online
Evidence & Key Facts
Source collectedLast source check September 8, 2026

Evidence basis. This named result reflects the sources and verification evidence listed on this page as of the date shown.

Best for

Microbiome

Standout strength

A home breath kit that tracks hydrogen and methane across eight collection timepoints over three hours after a sugar drink, with a combined gas trend and carbon dioxide quality control.

Important watch-out

The combined hydrogen-plus-methane trend is a calculated output. Carbon dioxide is a sample-quality check, and eight timepoints do not mean eight different biomarkers.

Labbrary+

The Test Grade. The Reason Behind It.

Potentially useful for the right buyer, with meaningful evidence, coverage, transparency, access, cost, terms, or privacy tradeoffs to review.

A lower grade does not mean a panel is a bad personal fit. Your Fit Score can be higher when its purpose, price, sample, access, or support matches what you need.

Explore the Full Methodology
Labbrary Test GradeUseful

Next step

Check the panel or research the provider

Prices, availability, and ordering requirements can change. Confirm the current details before purchasing.

View Exact Panel on Provider SiteView Marek Health profile

Scope, both directions

Inside the Panel. Beyond the Name.

Named measurements

  • Hydrogen (H2)
  • Methane (CH4)
  • Combined hydrogen and methane (H2 + CH4, calculated gas trend)
  • Carbon dioxide (CO2, sample-quality control)

Measured categories and focus areas

  • Gut Health
  • Microbiome

Important limits and omissions

  • The combined hydrogen-plus-methane trend is a calculated output. Carbon dioxide is a sample-quality check, and eight timepoints do not mean eight different biomarkers.
  • A rise in hydrogen of at least 20 ppm above baseline by 90 minutes or methane of at least 10 ppm at any time is an interpretive threshold for this test. A clinician should interpret the result alongside symptoms and preparation quality.
  • The exact performing laboratory, assay-specific validation and an actual sample report have not been assessed.
  • Available to US residents with a valid US driver license or state-issued ID, excluding Hawaii and US territories. Confirm kit delivery and any additional state restrictions at checkout before ordering.
  • Confirm fasting requirements, the test drink and other preparation instructions supplied with your kit before collecting the eight timed samples.

The full breakdown

Eight Dimensions.
One Named Result.

Open any row for the reasoning and evidence behind the named result.

Seller is Marek Diagnostics. Collection is home self-collection via the exact-offer kit. Laboratory system is not named on the exact offer; Quest facts are not inherited. Exact performing facility, assay method, and offer-specific analytical performance are unpublished. Online ordering is not at-home collection; the kit itself proves home collection. Limitation: Seller is Marek Diagnostics. Collection is home self-collection via the exact-offer kit. Laboratory system is not named on the exact offer; Quest facts are not inherited. Exact performing facility, assay method, and offer-specific analytical performance are unpublished. Online ordering is not at-home collection; the kit itself proves home collection.

Exact named measurement scope per the product page title and description. Limitation: No additional limitation was recorded in the authority row.

Named analytes per the exact offer; panel boundaries per the product page. Limitation: No additional limitation was recorded in the authority row.

Results emailed; sample report, scales, and uncertainty not assessed. Limitation: No additional limitation was recorded in the authority row.

Exact price, purchase route, and ordering model on the product page; performing lab assignment unpublished. Limitation: No additional limitation was recorded in the authority row.

Online ordering with provider-approved test requests; Quest collection; state restrictions apply. Limitation: No additional limitation was recorded in the authority row.

Exact-offer price on the product page; refund and draw-fee terms per shared policies. Limitation: No additional limitation was recorded in the authority row.

Shared Marek privacy policy governs order data; specimen and result retention unresolved. Limitation: No additional limitation was recorded in the authority row.

What it asks of you

Sample and fulfillment journey

Order

Confirmed

Order Gut Health: Bloating & Gas Analysis online for $460.00. A healthcare provider reviews and approves the request; no office visit is required.

Panel-specific source · Source dated September 8, 2026

Collect

Partially confirmed

Breath collected at home across eight timepoints during a three-hour test. Confirm fasting requirements, the test drink and other preparation instructions supplied with your kit before collecting the eight timed samples.

Panel-specific source · Source dated September 8, 2026

Lab

Confirmed

Mail the sample using the prepaid packaging. Collect early in the work week and ship within 24 hours. Return the kit before its printed expiration date or within 45 days of receipt, whichever comes first. Prepaid return packaging is included. Results typically arrive within 14 business days. Approximately two weeks is a general estimate, and timing can vary with test or panel complexity. These estimates do not include consultation timing.

Panel-specific source · Source dated September 8, 2026

Report

Confirmed

Results are emailed. An included clinician interpretation, health-coach consultation or personalized treatment plan has not been established. Hydrogen is interpreted as the rise above baseline, and methane as its peak concentration.

Panel-specific source · Source dated September 8, 2026

Under the hood

Follow the Evidence.

Every published claim should trace to a dated source. Missing evidence remains visible instead of being filled with assumptions.

Source 1Recorded for this record. Last source check September 8, 2026.View source
Source 2Recorded for this record. Last source check September 8, 2026.View source
Source 3Recorded for this record. Last source check September 8, 2026.View source
Source 4Recorded for this record. Last source check September 8, 2026.View source
Source 5Recorded for this record. Last source check September 8, 2026.View source
Source 6Recorded for this record. Last source check September 8, 2026.View source
Source 7Recorded for this record. Last source check September 8, 2026.View source

True total cost

The Price. Plus the Details.

Pricing for Gut Health: Bloating & Gas Analysis
ItemCurrent disclosed priceNote
Panel$460Verify the checkout total, shipping, and collection fees before ordering.
Checkout feesNone addedMarek Health's fee record shows no order, draw or physician fee for this test.
Total at checkout$460The listed price, with no added fees on record.
HSA/FSA paymentNot confirmedHSA/FSA payment eligibility has not been confirmed from provider documentation.
Optional servicesNot confirmedClinician review, subscriptions, and retesting discounts are listed only when documented.

Price status. This record shows disclosed pricing. Checkout costs can change and should be verified before purchase.

Your data

Your Data. Your Questions.

Privacy details are scored only when source documentation is available. Unconfirmed retention, deletion, research use, or marketing practices remain unconfirmed.

Reading the labels

What Has Been Checked?

Source collected

Evidence labels stay separate from the Test Grade. They show how much source support exists for the evaluation.

The balance

The Strengths. The Tradeoffs.

Strengths

  • A home breath kit that tracks hydrogen and methane across eight collection timepoints over three hours after a sugar drink, with a combined gas trend and carbon dioxide quality control.
  • Order online for healthcare-provider review and approval. A mailed kit supports home collection with prepaid specimen return; no healthcare-provider office visit is required.

Watch-outs

  • The combined hydrogen-plus-methane trend is a calculated output. Carbon dioxide is a sample-quality check, and eight timepoints do not mean eight different biomarkers.
  • A rise in hydrogen of at least 20 ppm above baseline by 90 minutes or methane of at least 10 ppm at any time is an interpretive threshold for this test. A clinician should interpret the result alongside symptoms and preparation quality.
  • The exact performing laboratory, assay-specific validation and an actual sample report have not been assessed.
  • Available to US residents with a valid US driver license or state-issued ID, excluding Hawaii and US territories. Confirm kit delivery and any additional state restrictions at checkout before ordering.
  • Confirm fasting requirements, the test drink and other preparation instructions supplied with your kit before collecting the eight timed samples.
  • Results typically arrive within 14 business days. Approximately two weeks is a general estimate, and timing can vary with test or panel complexity. These estimates do not include consultation timing.
  • The kit costs $460 and includes prepaid specimen return packaging. Confirm outbound shipping and the final checkout total. A blood-draw charge has not been established for this breath kit. Web sales are final and cannot be cancelled after ordering.

Take it with you

The Test Truth Card

The key facts from this review in one compact card.

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Verification History

September 8, 2026Recorded source date.Source collected

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