Very low energy diets induce weight loss before non-bariatric surgery

December 28, 2022

According to a recent study, preoperative very low energy diets before non-bariatric surgery were found to be safe, well tolerated, and effective in inducing weight loss in obese patients.

 

The study was published in the journal, Surgery. Overall, 13 studies that included 395 patients were looked into. These patients received very low energy diets preoperatively in preparation for non-bariatric surgery. The primary outcome of the study was postoperative morbidity. Preoperative weight loss, compliance, and safety were included as secondary outcomes.

 

The mean duration of preoperative very low energy diets was 6.6 weeks. The daily caloric intake was between 450 kcal to 1,400 kcal. The average preoperative weight loss achieved ranged from 3.2 kg to 19.2 kg. No significant differences in postoperative morbidity, operative time, or postoperative length of stay were observed with very low energy diets.

 

Thus, it may be concluded that very low energy diets have a positive impact in inducing preoperative weight loss in patients undergoing non-bariatric surgery for both benign and malignant diseases.

Reference:

McKechnie T, Povolo CA, Lee J, et al. Very low energy diets before nonbariatric surgery: A systematic review and meta-analysis. Surgery. 2022 Dec;172(6):1733-1743.

Source link: 

https://pubmed.ncbi.nlm.nih.gov/36273973/

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