B1 Vitamin Deficiency After Bariatric Surgery, Prevalence, and Symptoms: a Systematic Review and Meta-analysis
B1 Vitamin Deficiency After Bariatric Surgery, Prevalence, and Symptoms: a Systematic Review and Meta-analysis
Bahardoust et al., 2022 | Obes Surg | Meta Analysis
Citation
Bahardoust Mansour, Eghbali Foolad, ... Khanafshar Elham. B1 Vitamin Deficiency After Bariatric Surgery, Prevalence, and Symptoms: a Systematic Review and Meta-analysis. Obes Surg. 2022-Sep;32(9):3104-3112. doi:10.1007/s11695-022-06178-7
Abstract
B1 deficiency is a very prevalent complication of bariatric surgery. This study reviews prevalence and symptoms of B1 vitamin deficiency after bariatric surgery. PubMed, Scopus, and Web of Science published were searched up to 10 Feb 2022, with the following keywords: Roux-en-Y gastric bypass, one anastomosis gastric bypass, Omega bypass, Mini bypass, Bariatric surgery OR Bariatric surgery, metabolic surgery, Weight loss surgery, Classic gastric bypass, Loop gastric bypass, Gastric Bypass, thiamine OR thiamin, beriberi, B1. A total of 11 studies examining 1494 patients were included in this meta-analysis. Twenty-seven percent of patients who underwent bariatric surgeries experience vitamin B1 deficiency. Thiamine supplements should be prescribed for the patients for the rest of their lives, and also standard post-surgery follow-ups are necessary in terms of monitoring dietary factors.
Key Findings
Thiamine supplements should be prescribed for the patients for the rest of their lives, and also standard post-surgery follow-ups are necessary in terms of monitoring dietary factors.
Outcomes Measured
- Requires manual extraction
Population
| Field | Value |
|---|---|
| Population | See abstract |
| Sample Size | 1494 |
| Age Range | See abstract |
| Condition | deficiency |
MeSH Terms
- Bariatric Surgery
- Gastric Bypass
- Humans
- Obesity, Morbid
- Postoperative Complications
- Prevalence
- Retrospective Studies
- Thiamine
- Thiamine Deficiency
Evidence Classification
- Level: Meta Analysis
- Publication Types: Journal Article, Meta-Analysis, Systematic Review
- Vertical: thiamine
Provenance
- PMID: 35776243
- DOI: 10.1007/s11695-022-06178-7
- PMCID: Not in PMC
- Verified: 2026-04-09 via PubMed E-utilities API
Source extracted via PubMed E-utilities API on 2026-04-09