Effects of alternate day fasting and krill oil on muscle strength and body composition in overweight adults

Changes in Muscle Strength, Inflammatory Markers, and Body Composition in Response to Alternate Day Fasting Combined With Krill Oil Supplementation in Adults With Overweight and Obesity

Not applicable Interventional University of Glasgow · NCT06001632

This study is testing if taking krill oil while doing alternate day fasting can help overweight adults keep their muscle strength and improve their body composition while losing weight.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment50 (estimated)
Ages25 Years to 65 Years
SexAll
SponsorUniversity of Glasgow Academic / other
Locations1 site (Glasgow, Scotland)
Trial IDNCT06001632 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the impact of krill oil supplementation combined with alternate day fasting on muscle strength, body composition, and inflammatory markers in adults with overweight and obesity. Participants will be randomly assigned to receive either krill oil or a placebo while following a structured dietary weight loss intervention. The study consists of a preparation phase, an eight-week weight loss phase, and an eight-week weight maintenance phase, lasting a total of 20 weeks. The trial aims to assess whether krill oil can mitigate muscle loss and improve metabolic health during weight loss.

Who should consider this trial

Good fit: Ideal candidates are healthy adults aged 25 to 65 with a BMI between 25 and 39.9 who have maintained stable body weight for at least three months.

Not a fit: Patients who smoke, have food allergies, or are on dietary supplements may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a novel approach to enhance weight loss outcomes and improve muscle strength in individuals with obesity.

How similar studies have performed: Previous studies have shown promising results with similar dietary interventions, but the specific combination of alternate day fasting and krill oil is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Healthy (male/female)
* body mass index (BMI) of 25 - 39.9 kg/m2
* Aged between 25 and 65 years
* stable body weight for at least three months

Exclusion Criteria:

* Smokers
* Food allergy
* On any dietary supplements or dietary regimes at the time of the study
* Participants with systolic/diastolic \<90/60 mmHg and \>140/90 mmHg

Where this trial is running

Glasgow, Scotland

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Obesity Associated DisorderObesityCardiometabolic risk factorsFat massFat free massBody compositionMuscle strengthLCn-3PUFA
Last reviewed 2026-06-13 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.