Effects of Sleeve Gastrectomy vs. Roux-en-Y Gastric Bypass on Eating Behavior and Sweet Taste Perception in Subjects with Obesity.
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.
['Nance|Katie|K|', 'Eagon|J Christopher|JC|', 'Klein|Samuel|S|', 'Pepino|Marta Yanina|MY|']
D000328:Adult D001069:Appetite Regulation D066249:Craving D003463:Cues D004644:Emotions D005247:Feeding Behavior D005260:Female D005743:Gastrectomy D015390:Gastric Bypass D006801:Humans D008297:Male D008875:Middle Aged D009765:Obesity D011795:Surveys and Questionnaires D013649:Taste D055697:Taste Perception D013997:Time Factors D016896:Treatment Outcome D015431:Weight Loss
sleeve gastrectomy gastric bypass eating behavior taste bariatric surgery