Ketogenic Diet Prior to Bariatric Surgery

Standard dietary regiments for bariatric are advised prior to surgery. The most used diet is a very low calorie diet (VLCD). These diets potentially have multiple pittfalls. Very low-calorie ketogenic diets (VLCKD) have been proposed as a new regimen for achieving weight- and liver volume loss in patients undergoing bariatric surgery. The beneficial effect of VLCKDs compared to (V)LCDs is the aimed preservation of FFM and RMR, while still reducing FM. Only a few small studies addressed the role of VLCKDs prior to bariatric surgery, and the data including FFM and FM is actually scarce. Therefore, a well-designed randomised controlled trial is necessary to establish the efficacy of a VLCKD.

NCT Number	NCT06850493
Lead Sponsor	Maxima Medical Center
Conditions	Bariatric Surgery Candidate, Ketogenic Dieting
Enrollment	46 participants
Start Date	2022-09-01
Primary Completion	2025-09 (estimated)
Study Completion	2025-12 (estimated)
Updated on ClinicalTrials.gov	2025-02-27