Clinical trial Recruiting at 1 site Interventional Ages 18 to 40

Ketone monoesters to boost muscle protein synthesis and whole‑body protein use

Official title: The Effect of Ketone Monoesters on Skeletal Muscle Protein Synthesis and Whole-body Protein Metabolism.

Run by University of Exeter · NCT07082309 · Data updated 2026-11-12

This study will test whether taking an oral ketone monoester with protein can increase muscle protein building and change whole‑body protein metabolism in healthy adults.

More Healthy Adult Participants trials

Quick facts

Study typeInterventional
Ages18 Years to 40 Years
SexAll
Enrollment12 (estimated)
SponsorUniversity of Exeter
Academic / other
Locations1 site (Exeter, Devon)
StatusRecruiting
StartedJune 4, 2025
Main results expectedJuly 2026
Study endsJuly 2027
Registry record updatedJuly 24, 2025
Trial IDNCT07082309 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Healthy, non‑smoking adults aged 18–40 with BMI 18.5–30 kg/m2 who are not pregnant and have no major metabolic, cardiovascular, or gastrointestinal disease are the intended participants.

Probably not a fit

People outside the age or BMI ranges, smokers, pregnant individuals, or those with diabetes, hypertension, cardiovascular or gastrointestinal disease, or on medications that affect protein metabolism may not benefit or are excluded.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

Researchers will give healthy adult volunteers an oral ketone monoester drink (about 0.5 g/kg body mass) co‑ingested with a whey protein beverage and compare it to a control beverage to raise blood β‑hydroxybutyrate (BHB) to levels seen in fasting. They will measure post‑meal muscle protein synthesis and whole‑body protein turnover using blood tests and muscle sampling over several hours after ingestion. The trial enrolls non‑smoking adults with BMI 18.5–30 and ages 18–40 and excludes those with metabolic, cardiovascular, or gastrointestinal disease, pregnancy, or medications that affect protein metabolism. Results will clarify how exogenous ketosis interacts with feeding to influence muscle remodelling.

Why it matters

Potential benefit: If successful, ketone monoester supplementation taken with protein could help improve post‑meal muscle protein synthesis and support muscle maintenance.

How similar studies have gone: Prior infusion studies and a small oral ketone monoester trial have shown that BHB can stimulate muscle protein synthesis, suggesting the approach has early supporting evidence.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

• BMI 18-30

Exclusion Criteria:

* Body mass index (BMI) \< 18.5 or \> 30 kg/m2
* Age \< 18 or \> 40
* Regularly smokes
* Type 2 diabetes
* Cardiovascular disease, metabolic disease and hypertension (≥ 140/90 mmHg)
* Gastrointestinal disorders
* Use medicines that may impact protein metabolism or that are anti-inflammatory (determined at the screening)
* Pregnancy

Where it's running

  • Health and Life Sciences
    Exeter, Devon, United Kingdom
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.