Evaluation of nutritional, anthropometric, and psychological outcomes in different metabolic and bariatric surgery techniques: a follow up study

Elham Hojaji; Zahra Veysi; Shadi Naderyan Fe’li; Neda Shalbaf; Moslem Arian; Cain C.T. Clark; Ahmad Reza Dorosty Motlagh

doi:10.1186/s12893-025-02773-4

Evaluation of nutritional, anthropometric, and psychological outcomes in different metabolic and bariatric surgery techniques: a follow up study

Elham Hojaji
, Zahra Veysi
, Shadi Naderyan Fe’li
, Neda Shalbaf
, Moslem Arian
, Cain C.T. Clark
, Ahmad Reza Dorosty Motlagh

Tehran University of Medical Sciences
Shahid Beheshti University of Medical Sciences
Iran University of Medical Sciences
University of Social Welfare and Rehabilitation Sciences

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

5 Downloads (Pure)

Abstract

Background: Metabolic and bariatric surgery (MBS) is a suitable solution for the treatment of morbid obesity. Investigating an MBS method that has the best outcomes has always been the main concern of physicians. The current study aimed to compare nutritional, anthropometric, and psychological complications of individuals undergoing various MBS Techniques. Methods: A total of 96 subjects, who had been already referred to the obesity clinic of Firoozgar Hospital, Tehran, Iran, for MBS, were selected for the study and were followed for one year after MBS. The dietary intakes of the participants were assessed using a Food Frequency Questionnaire (FFQ) on a daily, weekly, monthly, or yearly basis. The mental health of participants was done via the Symptom Checklist 90 Revised. Furthermore, the In-Body 720 bioelectrical impedance device was used to obtain the body composition of the participants at the beginning and the end of the study. Results: The mean age of the participants was 39.5 ± 9.5 years. All anthropometric indices including weight, Body Mass Index (BMI), protein content, fat mass, and fat mass percentage decreased after Roux-en-Y gastric bypass (RYGB), one-anastomosis gastric bypass (OAGB), and sleeve gastrectomy (SG) surgeries (P < 0.05). After adjustments for confounders, no significant difference was observed in the magnitude of the changes in body composition between the three Techniques (p > 0.05). Energy and carbohydrate intake significantly decreased after surgeries in all three groups (p < 0.05), but comparing the methods no significant difference was revealed (p > 0.05). Furthermore, the results indicated that there was a significant relationship between the mental health of patients before and after surgeries (p < 0.05). Conclusion: Overall, all three methods of surgery contributed to the improvement of the nutritional, anthropometric, and psychological complications. Further complementary studies are needed to determine the least complicated MBS method.

Original language	English
Article number	41
Number of pages	10
Journal	BMC Surgery
Volume	25
Issue number	1
Early online date	25 Jan 2025
DOIs	https://doi.org/10.1186/s12893-025-02773-4
Publication status	Published - Dec 2025

Bibliographical note

© The Author(s) 2025. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third-party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

Keywords

Dietary intake
Metabolic and bariatric surgery
Obesity
Psychological problems

ASJC Scopus subject areas

Surgery

Access to Document

10.1186/s12893-025-02773-4Licence: CC BY

Clark2025VoRFinal published version, 1.24 MBLicence: CC BY

Cite this

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title = "Evaluation of nutritional, anthropometric, and psychological outcomes in different metabolic and bariatric surgery techniques: a follow up study",

abstract = "Background: Metabolic and bariatric surgery (MBS) is a suitable solution for the treatment of morbid obesity. Investigating an MBS method that has the best outcomes has always been the main concern of physicians. The current study aimed to compare nutritional, anthropometric, and psychological complications of individuals undergoing various MBS Techniques. Methods: A total of 96 subjects, who had been already referred to the obesity clinic of Firoozgar Hospital, Tehran, Iran, for MBS, were selected for the study and were followed for one year after MBS. The dietary intakes of the participants were assessed using a Food Frequency Questionnaire (FFQ) on a daily, weekly, monthly, or yearly basis. The mental health of participants was done via the Symptom Checklist 90 Revised. Furthermore, the In-Body 720 bioelectrical impedance device was used to obtain the body composition of the participants at the beginning and the end of the study. Results: The mean age of the participants was 39.5 ± 9.5 years. All anthropometric indices including weight, Body Mass Index (BMI), protein content, fat mass, and fat mass percentage decreased after Roux-en-Y gastric bypass (RYGB), one-anastomosis gastric bypass (OAGB), and sleeve gastrectomy (SG) surgeries (P < 0.05). After adjustments for confounders, no significant difference was observed in the magnitude of the changes in body composition between the three Techniques (p > 0.05). Energy and carbohydrate intake significantly decreased after surgeries in all three groups (p < 0.05), but comparing the methods no significant difference was revealed (p > 0.05). Furthermore, the results indicated that there was a significant relationship between the mental health of patients before and after surgeries (p < 0.05). Conclusion: Overall, all three methods of surgery contributed to the improvement of the nutritional, anthropometric, and psychological complications. Further complementary studies are needed to determine the least complicated MBS method.",

keywords = "Dietary intake, Metabolic and bariatric surgery, Obesity, Psychological problems",

author = "Elham Hojaji and Zahra Veysi and Fe{\textquoteright}li, \{Shadi Naderyan\} and Neda Shalbaf and Moslem Arian and Clark, \{Cain C.T.\} and \{Dorosty Motlagh\}, \{Ahmad Reza\}",

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T1 - Evaluation of nutritional, anthropometric, and psychological outcomes in different metabolic and bariatric surgery techniques

T2 - a follow up study

AU - Hojaji, Elham

AU - Veysi, Zahra

AU - Fe’li, Shadi Naderyan

AU - Shalbaf, Neda

AU - Arian, Moslem

AU - Clark, Cain C.T.

AU - Dorosty Motlagh, Ahmad Reza

N1 - © The Author(s) 2025. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third-party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

PY - 2025/12

Y1 - 2025/12

N2 - Background: Metabolic and bariatric surgery (MBS) is a suitable solution for the treatment of morbid obesity. Investigating an MBS method that has the best outcomes has always been the main concern of physicians. The current study aimed to compare nutritional, anthropometric, and psychological complications of individuals undergoing various MBS Techniques. Methods: A total of 96 subjects, who had been already referred to the obesity clinic of Firoozgar Hospital, Tehran, Iran, for MBS, were selected for the study and were followed for one year after MBS. The dietary intakes of the participants were assessed using a Food Frequency Questionnaire (FFQ) on a daily, weekly, monthly, or yearly basis. The mental health of participants was done via the Symptom Checklist 90 Revised. Furthermore, the In-Body 720 bioelectrical impedance device was used to obtain the body composition of the participants at the beginning and the end of the study. Results: The mean age of the participants was 39.5 ± 9.5 years. All anthropometric indices including weight, Body Mass Index (BMI), protein content, fat mass, and fat mass percentage decreased after Roux-en-Y gastric bypass (RYGB), one-anastomosis gastric bypass (OAGB), and sleeve gastrectomy (SG) surgeries (P < 0.05). After adjustments for confounders, no significant difference was observed in the magnitude of the changes in body composition between the three Techniques (p > 0.05). Energy and carbohydrate intake significantly decreased after surgeries in all three groups (p < 0.05), but comparing the methods no significant difference was revealed (p > 0.05). Furthermore, the results indicated that there was a significant relationship between the mental health of patients before and after surgeries (p < 0.05). Conclusion: Overall, all three methods of surgery contributed to the improvement of the nutritional, anthropometric, and psychological complications. Further complementary studies are needed to determine the least complicated MBS method.

AB - Background: Metabolic and bariatric surgery (MBS) is a suitable solution for the treatment of morbid obesity. Investigating an MBS method that has the best outcomes has always been the main concern of physicians. The current study aimed to compare nutritional, anthropometric, and psychological complications of individuals undergoing various MBS Techniques. Methods: A total of 96 subjects, who had been already referred to the obesity clinic of Firoozgar Hospital, Tehran, Iran, for MBS, were selected for the study and were followed for one year after MBS. The dietary intakes of the participants were assessed using a Food Frequency Questionnaire (FFQ) on a daily, weekly, monthly, or yearly basis. The mental health of participants was done via the Symptom Checklist 90 Revised. Furthermore, the In-Body 720 bioelectrical impedance device was used to obtain the body composition of the participants at the beginning and the end of the study. Results: The mean age of the participants was 39.5 ± 9.5 years. All anthropometric indices including weight, Body Mass Index (BMI), protein content, fat mass, and fat mass percentage decreased after Roux-en-Y gastric bypass (RYGB), one-anastomosis gastric bypass (OAGB), and sleeve gastrectomy (SG) surgeries (P < 0.05). After adjustments for confounders, no significant difference was observed in the magnitude of the changes in body composition between the three Techniques (p > 0.05). Energy and carbohydrate intake significantly decreased after surgeries in all three groups (p < 0.05), but comparing the methods no significant difference was revealed (p > 0.05). Furthermore, the results indicated that there was a significant relationship between the mental health of patients before and after surgeries (p < 0.05). Conclusion: Overall, all three methods of surgery contributed to the improvement of the nutritional, anthropometric, and psychological complications. Further complementary studies are needed to determine the least complicated MBS method.

KW - Dietary intake

KW - Metabolic and bariatric surgery

KW - Obesity

KW - Psychological problems

UR - https://www.scopus.com/pages/publications/85217002670

U2 - 10.1186/s12893-025-02773-4

DO - 10.1186/s12893-025-02773-4

M3 - Article

C2 - 39863849

AN - SCOPUS:85217002670

SN - 1471-2482

VL - 25

JO - BMC Surgery

JF - BMC Surgery

IS - 1

M1 - 41

ER -

Evaluation of nutritional, anthropometric, and psychological outcomes in different metabolic and bariatric surgery techniques: a follow up study

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

Access to Document

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