Effects of sleeve gastrectomy vs. Roux-en-Y gastric bypass on eating behavior and sweet taste perception in subjects with obesity

Katie Nance, J. Christopher Eagon, Samuel Klein, Marta Yanina Pepino

Research output: Contribution to journalArticle

Abstract

The goal of this study was to test the hypothesis that weight loss induced by Roux-en-Y gastric bypass (RYGB) has greater effects on taste perception and eating behavior than comparable weight loss induced by sleeve gastrectomy (SG). We evaluated the following outcomes in 31 subjects both before and after ~20% weight loss induced by RYGB (n = 23) or SG (n = 8): (1) sweet, savory, and salty taste sensitivity; (2) the most preferred concentrations of sucrose and monosodium glutamate; (3) sweetness palatability, by using validated sensory testing techniques; and (4) eating behavior, by using the Food Craving Inventory and the Dutch Eating Behavior Questionnaire. We found that neither RYGB nor SG affected sweetness or saltiness sensitivity. However, weight loss induced by either RYGB or SG caused the same decrease in: (1) frequency of cravings for foods; (2) influence of emotions and external food cues on eating behavior; and (3) shifted sweetness palatability from pleasant to unpleasant when repetitively tasting sucrose (all p-values ≤ 0.01). Therefore, when matched on weight loss, SG and RYGB cause the same beneficial effects on key factors involved in the regulation of eating behavior and hedonic component of taste perception.

Original languageEnglish (US)
Article number18
JournalNutrients
Volume10
Issue number1
DOIs
StatePublished - Jan 2018

Fingerprint

Taste Perception
bariatric surgery
Gastric Bypass
Feeding Behavior
Gastrectomy
eating habits
Weight Loss
obesity
weight loss
Obesity
sweetness
craving
palatability
Food
Sucrose
Satureja
sucrose
taste sensitivity
saltiness
savory

Keywords

  • Bariatric surgery
  • Eating behavior
  • Gastric bypass
  • Sleeve gastrectomy
  • Taste

ASJC Scopus subject areas

  • Food Science
  • Nutrition and Dietetics

Cite this

Effects of sleeve gastrectomy vs. Roux-en-Y gastric bypass on eating behavior and sweet taste perception in subjects with obesity. / Nance, Katie; Eagon, J. Christopher; Klein, Samuel; Pepino, Marta Yanina.

In: Nutrients, Vol. 10, No. 1, 18, 01.2018.

Research output: Contribution to journalArticle

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