How Fasting Affects Fat Burning in Lean and Obese Men and Women
Tests how 84 hours of fasting changes fat burning in lean and obese adults.
Plain-language title generated from the registry record
Registry title: The Effect of Fasting on Peak Fat Oxidation, Mitochondrial Coupling and Extracellular Matrix
Key facts
- Where
- Copenhagen, DenmarkSee the site
Could this be for you?
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 18 and 40 years old?
Source: NCT07692646, who can take part
Where in Denmark
- Department of Biomedical SciencesCopenhagen, DenmarkTaking people
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Trial details
- Who runs it
- University of Copenhagen
- Trial code
- NCT07692646
- Record updated
- 9 July 2026
- Original description
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.Read full original descriptionShow less
The Effect of Fasting on Peak Fat Oxidation, Mitochondrial Coupling and Extracellular Matrix in Healthy Men and Lean and Obese Men and Women
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.
Inclusion: 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].
Exclusion: Consumption of medications and supplements that influence substrate use at rest and/or during exercise; Present or former cardiovascular disease and chronical inflammatory disease; Pregnancy.