Impact of Different Carbohydrate Feedings on a Hydrogen Breath Curve and Self-reported Gastrointestinal Complaints

GI distress is widely prevalent among athletes, ranging from 30 to 90% in recreationally and professionally active athletes. As the recipient of nutrients, the gastrointestinal (GI) tract plays an important role in athleticism. The following pilot project aims to better understand if a fructose load after hiking under heat stress will result in a meaningful hydrogen breath elevation as a marker for malabsorption in healthy participants, and if supplementation of a multi-ingredient fermented whey supplement will result in a different hydrogen breath response rate after a heat stress hiking test.

NCT Number	NCT06648967
Lead Sponsor	Arizona State University
Conditions	Quality of Life
Enrollment	8 participants
Start Date	2024-10-03
Primary Completion	2026-05-01 (estimated)
Study Completion	2026-07-01 (estimated)
Updated on ClinicalTrials.gov	2026-07-24