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Dietary Intakes and Biochemical Parameters of Morbidly Obese Patients Prior to Bariatric Surgery

  • Mojtaba Malek
  • Reyhaneh Yousefi
  • Saeed Safari
  • Seyyed Hashem Sezavar Seyyedi
  • Azadeh MottaghiEmail author
Original Contributions
  • 16 Downloads

Abstract

Background

Patients with morbid obesity appear to have adequate nutritional intake, but some studies suggest deficiencies in the micronutrient intake in these patients. Present study aimed to determine dietary intakes and their associated biochemical parameters in an Iranian population of patients with morbid obesity prior to bariatric surgery.

Methods

One hundred seventy patients with morbid obesity who have referred to surgery clinic of Firoozgar Hospital were enrolled in the study. Ideal Body Weight (IBW) and Adjusted Ideal Body Weight (AIBW) were calculated. The dietary data were collected using a Food Frequency Questionnaire (FFQ). Anthropometrics and biochemical parameters were assessed. All the statistical analyses were done using the SPSS with an alpha of 0.05.

Results

Mean age of participants was 37.4 ± 10.17 years. The mean and standard deviation (SD) of the BMI and EBW values was 45.75 ± 6.49 kg/m and 47.6 ± 13.74 kg, respectively. All the micro- and macro-nutrient intakes are significantly different from the recommended values, except for vitamin A in the men and calcium in the 51–70-year-old women. 47.1% and 17.1% of the participants were classified as patients with diabetes and pre-diabetes, respectively. Majority of participants had lower serum iron levels than the reference values. Almost all the participants (97%) had normal albumin levels.

Conclusions

Despite their excess intakes of energy, patients with obesity usually suffer from micronutrient deficiencies, such as vitamin D, iron, and vitamin B12, which can be accompanied by complicated biochemical disorders like impaired glucose metabolism and dyslipidemia. Therefore, bariatric surgery candidates require close nutritional monitoring before and after their surgical operations.

Keywords

Obesity Bariatric surgery Metabolic Weight Nutritional status Biochemical parameters Dietary intakes 

Notes

Acknowledgements

This work would not have been possible without the excellent collaboration between the Departments of Surgery and Research Center for Prevention of Cardiovascular Diseases. The authors wish to expressly thank the patients who participated in this study.

Compliance with Ethical Standards

Conflict of Interest

Author 5 reports grants from Iran University of Medical Sciences during the conduct of the study. All of other authors report no conflict of interest.

Ethical Approval Statement

The study was conducted according to the Declaration of Helsinki and study protocol was approved by the ethics committee of the Iran University of Medical Sciences number IR.IUMS.REC 1396-31585.

Informed Consent Statement

Informed written consents were obtained from all participants.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Research Center for Prevention of Cardiovascular diseases, Institute of Endocrinology and MetabolismIran University of Medical SciencesTehranIran
  2. 2.Iran University of Medical SciencesTehranIran
  3. 3.General Surgery DepartmentIran University of Medical SciencesTehranIran

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