ArticleJournal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract2021
Nutrient Intake and Deficiency of Patients 1 Year After Bariatric Surgery: Tehran Obesity Treatment Study (TOTS).
Article in Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 3 of them syntheses that pooled it.
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Who cites it
14 citing papers in PubMed, 3 syntheses or guidelines pooled it, 26 citations in OpenAlex.
- Zinc status following different bariatric procedures: systematic review and meta-analysis.Annals of medicine · 2026Pooled it
- Changes in Nutritional Outcomes After Roux-en-Y Gastric Bypass: A Systematic Review and Meta-Analysis.Obesity surgery · 2024Pooled it
- Vitamin B Complex Deficiency After Roux-en-Y Gastric Bypass and Sleeve Gastrectomy-a Systematic Review and Meta-Analysis.Obesity surgery · 2022Pooled it
- Changes in dietary nutrient intakes at 6 and 12 months following bariatric surgery in a Chinese observational cohort.Scientific reports · 2025Observational
- Legacy of the Tehran Obesity Treatment Study: Findings from 10 Years Bariatric Surgery Survey.International journal of endocrinology and metabolism · 2024Review
- The effect of bariatric surgery on dietary Behaviour, dietary recommendation Adherence, and micronutrient deficiencies one year after surgery.Preventive medicine reports · 2023Article
- Bariatric and metabolic surgery in patients with low body mass index: an online survey of 543 bariatric and metabolic surgeons.BMC surgery · 2023Article
- Diet quality and anthropometric indices of patients undergone bariatric surgery: the prospective Tehran obesity treatment study.BMC surgery · 2023Article
- The Effect of Laparoscopic Sleeve Gastrectomy on Serum Levels of Vitamin A, D and B12 and Iron Profile on Patients with Morbid Obesity.Advanced biomedical research · 2023Article
- Environmental Factors Determining Body Mass Index (BMI) within 9 Months of Therapy Post Bariatric Surgery-Sleeve Gastrectomy (SG).Nutrients · 2022Article
- The need and safety of vitamin supplementation in adults with obesity within 9 months post sleeve gastrectomy (SG): assessment based on intake.Scientific reports · 2022Article
- Macro- and Micro-nutrient Intake Adequacy in Gastric Bypass Patients after 24 Months: a Cross-sectional Study.Clinical nutrition research · 2021Article
- The Need and Safety of Mineral Supplementation in Adults with Obesity Post Bariatric Surgery-Sleeve Gastrectomy (SG).Obesity surgery · 2021Article
- A rare case report of late-onset phytobezoar formation following laparoscopic sleeve gastrectomy: delayed redo bariatric surgery.BMC surgery · 2021Article
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThis study aimed at assessing nutrient adequacy after 1 year in patients who had undergone gastric bypass (GB) surgery or sleeve gastrectomy (SG) and to investigate the association of nutrient adequacy with anthropometric indices.
methodsA total of 180 severely obese patients (BMI ≥ 35 kg/m
resultsThe mean age of SG (67%) and GB (32%) patients was 39.2 ± 12 and 41.4 ± 10 years, respectively. SG patients had more postoperative fat-free mass (52.0 ± 12 kg) than GB patients (49.7 ± 8 kg) (P < 0.05). The most common postoperative serum nutrient deficiencies were related to vitamin B12 (30%), ferritin (19%), and 25-hydroxyvitamin D (16.2%). Moreover, high inadequacy of protein (> 80%) and total fat (> 70%) intake was reported. The MAR score showed that almost 45% of the patients had possibly adequate intakes of some nutrients. The adequacy of nutrients was positively associated with fat-free mass (β = 8.67, P < 0.05).
conclusionThese findings revealed that patients had inadequate nutrient intakes 1 year after bariatric surgery, which was accompanied by serum nutritional deficiencies. Compared to GB patients, SG patients had a better body composition. Overall, compliance of patients with dietary guidelines and supplementations needs to be carefully monitored in the postoperative period.
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