Using a Very Low Calorie Diet before Bariatric Surgery

Use of Very Low Calorie Diet Preoperatively to Bariatric Surgery

Not applicable Interventional University of Aarhus · NCT05291741

This study is testing whether a very low calorie diet before bariatric surgery can help people lose more weight and feel better about their surgery experience.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment500 (estimated)
Ages18 Years to 65 Years
SexAll
SponsorUniversity of Aarhus Academic / other
Locations1 site (Aarhus)
Trial IDNCT05291741 on ClinicalTrials.gov

What this trial studies

This study investigates the effectiveness of a Very Low Calorie Diet (VLCD) administered before bariatric surgery to enhance weight loss and improve patient satisfaction. A total of 500 patients will be randomly assigned to either the VLCD group or a standard care group prior to their surgery. The goal is to optimize both the preoperative and operative experiences for patients undergoing bariatric surgery.

Who should consider this trial

Good fit: Ideal candidates for this study are individuals who are eligible for bariatric surgery.

Not a fit: Patients who are not candidates for bariatric surgery will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could lead to improved weight loss outcomes and higher satisfaction rates for patients undergoing bariatric surgery.

How similar studies have performed: Other studies have shown promising results with preoperative dietary interventions, suggesting that this approach may be effective.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Eligible for bariatric surgery

Exclusion Criteria:

-

Where this trial is running

Aarhus

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 Bariatric Surgery CandidateVery Low Calorie DietWeight Loss
Last reviewed 2026-06-09 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.