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02.02.2019 | Original Contributions

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

Zeitschrift:
Obesity Surgery
Autoren:
Saeed Shoar, Mohammad Naderan, Nasrin Shoar, Venkat R. Modukuru, Habibollah Mahmoodzadeh
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Abstract

Background

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.

Objectives

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

Settings

Private Research Institute, USA.

Methods

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).

Results

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.

Conclusion

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.

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