Alteration Pattern of Taste Perception After Bariatric Surgery: a Systematic Review of Four Taste Domains

  • Saeed ShoarEmail author
  • Mohammad Naderan
  • Nasrin Shoar
  • Venkat R. Modukuru
  • Habibollah Mahmoodzadeh
Original Contributions



Efforts continue to understand the underlying mechanism of weight loss after bariatric surgery. Taste perception has shown to be a contributing factor. However, the alteration pattern in different taste domains and among bariatric procedures has not been sufficiently investigated.


To study the alteration pattern in the perception of four taste domains after different bariatric procedures.


Private Research Institute, USA.


A systematic review was conducted to pool available data in the literature on post-operative changes in the perception of sensitivity to four taste domains after Roux-en-Y gastric bypass (RYGB), laparoscopic sleeve gastrectomy (LSG), and adjustable gastric banding (AGB).


Our study showed that bariatric surgery is associated with significant change in sensitivity to all four taste domains especially salt taste, sweetness, and sourness. LSG patients showed an increased sensitivity to all four taste domains. However, RYGB patients had a variable alteration pattern of taste perception but more commonly a decreased sensitivity to sweetness and an increased sensitivity to salt taste and sourness. Additionally, AGB patients had a decreased sensitivity to sweetness, salt taste, and sourness.


Bariatric surgery is associated with taste change in a way which results in less preference for high-calorie food and possibly reduced calorie intake. This may explain one of the mechanisms by which bariatric surgery produces weight loss. However, data are heterogeneous, the potential effect dilutes over time, and the alteration varies significantly between different procedures.


Taste perception Bariatric surgery Sleeve gastrectomy Roux-en-Y gastric bypass Adjustable gastric banding Weight loss Sweetness Salt taste Sourness Bitterness 


Compliance with Ethical Standards

Conflict of Interest

The authors declare that they have no conflict of interest.

Statement of Informed Consent

Not applicable as it is a systematic review and meta-analysis with no original data from patients.

Statement of Human and Animal Rights/Ethical Approval

Not applicable as it is a systematic review and meta-analysis with no original data from patients.


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Copyright information

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

Authors and Affiliations

  1. 1.Department of ScientificWriting, Division of Surgical ResearchShoar Research InstituteHoustonUSA
  2. 2.Cancer Institute, Imam Khomeini Hospital Complex, Division of Surgical Oncology, Department of SurgeryTehran University of Medical ScienceTehranIran
  3. 3.Faculty of MedicineKashan University of Medical ScienceKashanIran
  4. 4.Faculty Surgeon, Department of SurgeryNYMC at Metropolitan Hospital ProgramNew York CityUSA

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