The Effect of Fasting on Peak Fat Oxidation, Mitochondrial Coupling and Extracellular Matrix

Recruiting now · Not applicable

Conditions studied: Fasting, Obesity (BMI>30), Sex Difference

In brief

The interventional study will recruit four groups (n=10 per group): Young men and women with normal weight (BMI 18-25), and young men and women with obesity (BMI \>30). The study will investigate the effect of 84 hours of fasting on peak fat oxidation, mitochondrial coupling and the extracellular matrix.

Key facts

Study ID

NCT07692646

Run by

University of Copenhagen

People needed

40

Starts

2026-06-01

Expected to finish

2033-12-01

Last updated by the study team

2026-07-09

Who can join

Age: 18 and older, up to 40. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Healthy normal weight men aged [18,40] and BMI [18,25]
• Healthy normal weight women [18,40] and BMI [18,25]
• Healthy obese men [18,40] and BMI [30,40]
• Healthy obese women [18,40] and BMI [30,40]

You may not qualify if…

• Present or former cardiovascular disease and chronical inflammatory disease
• Consumption of medications and supplements that influence substrate use at rest and/or during exercise
• Pregnancy

Where it is running

• Department of Biomedical Sciences — Copenhagen, Denmark (enrolling)

Full record on ClinicalTrials.gov

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