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Breath Hydrogen and Methane as Biomarkers of Fiber Intake

Exploring the Utility of Breath Hydrogen and Methane as Biomarkers of Total Dietary Fiber Intake: A Pilot Study

Status
Enrolling by invitation
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07375329
Enrollment
30
Registered
2026-01-29
Start date
2026-01-28
Completion date
2026-12-31
Last updated
2026-04-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy Eating

Brief summary

This study is designed to examine if mobile phone-based breath hydrogen and methane monitors can be used as a biomarker of dietary fiber intake.

Interventions

OTHERBreath Tester

Participants enrolled in a fiber-focused study will be offered a Food Marble to see if the data provided correlates with self-reported fiber intake

Sponsors

University of Oklahoma
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
PREVENTION
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Must be enrolled in parent trial (NCT07219706)

Exclusion criteria

* Not enrolled in parent trial (NCT07219706)

Design outcomes

Primary

MeasureTime frameDescription
Breath methaneMeasured daily for three monthsMeasured daily for three months, represented in parts per million (ppm)
Breath hydrogenDaily for three monthsMeasured daily for three months, represented in parts per million (ppm)

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORAshlea Braun, PhD

University of Oklahoma

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 7, 2026