Evidence map›Paper›PMID 42046742›Full record

ReviewJournal of nutrition and metabolism2026

Implementation of Preoperative Very Low-Calorie Diets in Preparation for Metabolic and Bariatric Surgery.

Tala Abedalqader, Annabella R Strathman, Alberto Migliorini, Leonardo Garcia Cerecedo, Nour El Ghazal, Wah Yang, Adrian Dan, Manpreet S Mundi, Omar M Ghanem

Abstract readReview
PubMed Full text at PMC Publisher
In one paragraph

Review in Journal of nutrition and metabolism, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Tala AbedalqaderDepartment of Surgery, Mayo Clinic, Rochester, Minnesota, USA, mayo.edu.ORCID https://orcid.org/0009-0002-0634-4253
Annabella R StrathmanMayo Clinic Alix School of Medicine, Mayo Clinic, Rochester, Minnesota, USA, mayo.edu.
Alberto MiglioriniDepartment of Surgery, Mayo Clinic, Rochester, Minnesota, USA, mayo.edu.
Leonardo Garcia CerecedoMayo Clinic Alix School of Medicine, Mayo Clinic, Rochester, Minnesota, USA, mayo.edu.
Nour El GhazalDepartment of Surgery, Mayo Clinic, Rochester, Minnesota, USA, mayo.edu.ORCID https://orcid.org/0000-0001-9179-6021
Wah YangDepartment of Metabolic and Bariatric Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China, jd120.com.ORCID https://orcid.org/0000-0003-2341-3310
Adrian DanDepartment of Surgery, Summa Health System, Northeast Ohio Medical University, Akron, Ohio, USA, neomed.edu.ORCID https://orcid.org/0000-0002-7993-0379
Manpreet S MundiDivision of Endocrinology, Diabetes, Metabolism, and Nutrition, Mayo Clinic, Rochester, Minnesota, USA, mayo.edu.ORCID https://orcid.org/0000-0001-7902-3544
Omar M GhanemDepartment of Surgery, Mayo Clinic, Rochester, Minnesota, USA, mayo.edu.ORCID https://orcid.org/0000-0002-5725-8497

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Very low-calorie diets (VLCDs) have been commonly implemented prior to metabolic and bariatric surgery (MBS) with the goal of shrinking left liver lobe size and reducing intra-abdominal mesenteric fat. Through this manuscript, we aimed to review the available literature discussing the types of VLCDs, their mode of implementation, preoperative duration, and the intraoperative and postoperative measures. A total of 103 articles was used in the generation of this review, including 3402 MBS candidates across the studies. VLCD was shown to induce significant preoperative weight loss, reduction in body fat mass, glycemic improvement, and decrease in proinflammatory makers. Liver volume reduction of 5%-23% and abdominal wall circumference reduction of 2.0-8.5 cm were noted following short regimens of VLCD, leading to improvement in perceived intraoperative difficulty. Postoperatively, metabolic improvements and reduction in perioperative complication rates were observed in some studies. In conclusion, VLCD demonstrated potential preoperative, intraoperative, and postoperative improvements in patients undergoing MBS.

Identifiers

PMID42046742
PMCPMC13110371

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.