Gut microbiota in bariatric surgery

Amin Gasmi, Geir Bjørklund, Pavan Kumar Mujawdiya, Yuliya Semenova, Alexandru Dosa, Salva Piscopo, Joeri J Pen, Asma Gasmi Benahmed, Daniel-Ovidiu Costea

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


Gut microbes share a symbiotic relationship with humans and perform several metabolic and physiological functions essential for human survival. It has been established in several scientific studies that obesity and other metabolic complications are always associated with disturbed gut microbiota profile, also called gut dysbiosis. In recent years, bariatric surgery has become a treatment of choice for weight loss, and it forms an important part of obesity management strategies across the globe. Interestingly, bariatric surgery has been shown to alter gut microbiota profile and synthesize short-chain fatty acids by gut microbes. In other words, gut microbes play a crucial role in better clinical outcomes associated with bariatric surgery. In addition, gut microbes are important in reducing weight and lowering the adverse events post-bariatric surgery. Therefore, several prebiotics, probiotics and postbiotics are recommended for patients who underwent bariatric surgery procedures for better clinical outcomes. The present review aims to understand the possible association between gut microbes and bariatric surgery and present scientific evidence showing the beneficial role of gut microbes in improving therapeutic outcomes of bariatric surgery.

Original languageEnglish
Pages (from-to)9299-9314
Number of pages16
JournalCritical Reviews in Food Science and Nutrition
Issue number28
Early online date2022
Publication statusPublished - 2023

Bibliographical note

Funding Information:
The author(s) reported there is no funding associated with the work featured in this article.

Publisher Copyright:
© 2022 Taylor & Francis Group, LLC.


  • Gut microbes
  • bariatric surgery
  • postbiotics
  • prebiotics
  • probiotics
  • short-chain fatty acids
  • virome


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