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Clinical Trial Summary

Randomized, double-blind, placebo-controlled crossover study designed to determine the effects of increasing colonic short-chain fatty acid (SCFA) content on aerobic endurance in healthy adults, and to identify underpinning mechanisms. In random order, healthy physically active adults will consume provided diets low in fiber and supplemented with SCFA-enriched high amylose maize starch (a poorly digested resistant starch considered a fermentable fiber) or low amylose maize starch (a rapidly digestible starch) for 1-week separated by a ≥2-week washout. At the end of each intervention period, participants will complete an endurance exercise bout followed by a time trial. Biological samples will be collected to assess muscle and whole body metabolism, gut microbiota, inflammation, and gastrointestinal function.


Clinical Trial Description

n/a


Study Design


Related Conditions & MeSH terms


NCT number NCT06054607
Study type Interventional
Source United States Army Research Institute of Environmental Medicine
Contact J. Philip Karl, PhD
Phone 508-206-2318
Email james.p.karl.civ@health.mil
Status Recruiting
Phase N/A
Start date July 21, 2023
Completion date September 30, 2025

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