title: Nutritional Status Prior to Laparoscopic Sleeve Gastrectomy Surgery.
abstract: Two main causes for nutrient deficiencies following bariatric surgery (BS) are pre-operative deficiencies and favoring foods with high-energy density and poor micronutrient content. The aims of this study were to evaluate nutritional status and gender differences and the prevalence of nutritional deficiencies among candidates for laparoscopic sleeve gastrectomy (LSG) surgery.
  
  
  
  A cross-sectional analysis of pre-surgery data collected as part of a randomized clinical trial on 100 morbidly obese patients with non-alcoholic fatty liver disease (NAFLD) admitted to LSG surgery at Assuta Medical Center between February 2014 and January 2015. Anthropometrics, food intake, and fasting blood tests were evaluated during the baseline visit.
  
  
  
  One-hundred patients completed the pre-operative measurements (60 % female) with a mean age of 41.9 ± 9.8 years and a mean BMI of 42.3 ± 4.7 kg/m(2). Pre-operatively, deficiencies for iron, ferritin, folic acid, vitamin B1, vitamin B12, vitamin D, and hemoglobin were 6, 1, 1, 6, 0, 22, and 6 %, respectively. Pre-surgery, mean energy, protein, fat, and carbohydrate intake were 2710.7 ± 1275.7 kcal/day, 114.2 ± 48.5, 110.6 ± 54.5, and 321.6 ± 176.1 gr/day, respectively. The intakes for iron, calcium, folic acid, vitamin B12, and vitamin B1 were below the Dietary Reference Intake (DRI) recommendations for 46, 48, 58, 14, and 34 % of the study population, respectively.
  
  
  
  We found a low prevalence of nutritional deficiencies pre-operatively except for vitamin D. Most micronutrient intake did not reach the DRI recommendations, despite high-caloric and macronutrient intake indicating a poor dietary quality.
authors.affiliation: Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.|Assuta Medical Center, Tel Aviv, Israel.|Department Gastroenterology, Tel-Aviv Medical Center, 6 Weizman St., 6423906, Tel-Aviv, Israel.
authors.forename: Shiri
authors.initials: S
authors.lastname: Sherf Dagan
authors.affiliation: Department Gastroenterology, Tel-Aviv Medical Center, 6 Weizman St., 6423906, Tel-Aviv, Israel.|School of Public Health, Faculty of Social Welfare and Health Sciences, University of Haifa, Haifa, Israel.
authors.forename: Shira
authors.initials: S
authors.lastname: Zelber-Sagi
authors.affiliation: Department Gastroenterology, Tel-Aviv Medical Center, 6 Weizman St., 6423906, Tel-Aviv, Israel.
authors.forename: Muriel
authors.initials: M
authors.lastname: Webb
authors.affiliation: Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.|The Department of Surgery, Rabin Medical Center, Campus Beilinson, Petach Tiqva, Israel.
authors.forename: Andrei
authors.initials: A
authors.lastname: Keidar
authors.affiliation: Assuta Medical Center, Tel Aviv, Israel.
authors.forename: Asnat
authors.initials: A
authors.lastname: Raziel
authors.affiliation: Assuta Medical Center, Tel Aviv, Israel.|Department of Surgery A, Emek Medical Center, Afula, Israel.
authors.forename: Nasser
authors.initials: N
authors.lastname: Sakran
authors.affiliation: Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.|Assuta Medical Center, Tel Aviv, Israel.|Department of Surgery C, Sheba Medical Center, Tel Hashomer, Israel.
authors.forename: David
authors.initials: D
authors.lastname: Goitein
authors.affiliation: Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel. orensh@tlvmc.gov.il.|Department Gastroenterology, Tel-Aviv Medical Center, 6 Weizman St., 6423906, Tel-Aviv, Israel. orensh@tlvmc.gov.il.
authors.forename: Oren
authors.initials: O
authors.lastname: Shibolet
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D005260:Female; D005743:Gastrectomy; D006801:Humans; D007557:Israel / Q000453:epidemiology; D008297:Male; D008875:Middle Aged; D009752:Nutritional Status; D009767:Obesity, Morbid / Q000150:complications / Q000601:surgery*; D011300:Preoperative Care; D015995:Prevalence; D014808:Vitamin D Deficiency / Q000150:complications / Q000453:epidemiology*
keywords: Bariatric surgery; Dietary supplements; Food intake; Micronutrient deficiencies; Obesity