Changes in taste perception and eating behavior after bariatric surgery-induced weight loss in women
Open accessAbstract
Objective: Roux‐en‐Y gastric bypass (RYGB) surgery causes greater weight loss than laparoscopic adjustable gastric banding (LAGB). We tested the hypothesis that RYGB has weight loss‐independent effects on taste perception, which influence eating behavior and contribute to the greater weight loss. Methods: Subjects were studied before and after ∼20% weight loss induced by RYGB ( n = 17) or LAGB ( n = 10). The following have been evaluated: taste sensitivity for sweet, salty and savory stimuli, sucrose and monosodium glutamate (MSG) preferences, sweetness palatability, eating behavior, and expression of taste‐related genes in biopsies of fungiform papillae. Results: Weight loss induced by both procedures caused the same decrease in: preferred sucrose concentration (−12 ± 10%), perceived sweetness of sucrose (−7 ± 5%), cravings for sweets and fast‐foods (−22 ± 5%), influence of emotions (−27 ± 5%), and external food cues (−30 ± 4%) on eating behavior, and expression of α‐gustducin in fungiform papillae (all P values <0.05). RYGB, but not LAGB, shifted sweetness palatability from pleasant to unpleasant when repetitively tasting sucrose ( P = 0.05). Neither procedure affected taste detection thresholds nor MSG preferences. Conclusions: LAGB and RYGB cause similar alterations in eating behaviors, when weight loss is matched. These changes in eating behavior were not associated with changes in taste sensitivity, suggesting other, as yet unknown, mechanisms are involved.
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The findings support a recent clinical report that taste changes may not be the sole contributor to altered food preferences, particularly after an extended period following RYGB surgery [8].
“Furthermore, the findings support a recent clinical report that taste changes may not be the sole contributor to altered food preferences, particularly after an extended period following RYGB surgery [8].”
From Taste and Odor Preferences Following Roux-En-Y Surgery in Humans (2018) · cites this paper as [8]
These results are consistent with previous findings [2,8,12] suggesting that RYGB surgery decreases the reward value of palatable food.
“These results are consistent with previous findings [2, 8, 12] suggesting that RYGB surgery decreases the reward value of palatable food.”
From Taste and Odor Preferences Following Roux-En-Y Surgery in Humans (2018) · cites this paper as [8]
A recent study found no change in taste sensitivity in patients who received RYGB despite altered food preferences.
“A recent study, however found no change in taste sensitivity in patients who received RYGB despite altered food preferences [8].”
From Taste and Odor Preferences Following Roux-En-Y Surgery in Humans (2018) · cites this paper as [8]
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References 40 · Cited by 187
Research works printed but not linked: 1
- [21]Beauchamp GK Vazquez de Vauera M Pearson PB Dietary status of human infants and their sensory responses to amino acid flavor Kawamura Y Kare MR Umami: a basic taste Marcel Dekker, Inc New York, NY, USA 1987 125 138
- Authors
- Pepino, M. Y., Bradley, D., Eagon, J. C., Sullivan, S., Abumrad, N. A., & Klein, S.
- Affiliations
- Washington University in St. Louis (US)
- Corresponding author
- Pepino, Marta Yanina
- ORCID
- Venue
- Obesity
- Publisher
- Wiley
- Published
- 2013-12-06
- Volume
- 22
- Issue
- 5
- Pages
- E13-20
- ISSN
- 1930-7381 (ISSN-L)
- 1930-739X
- PMC
- PMC4000290
- OpenAlex
- W1562824142
- Cited by
- 187
- References
- 40
- Citations by year
- 2026: 2 · 2025: 7 · 2024: 7 · 2023: 9 · 2022: 13 · 2021: 14 · 2020: 55 · 2019: 17 · 2018: 10 · 2017: 14 · 2016: 21 · 2015: 15 · 2014: 3
- FWCI
- 12.83
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Obesity (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institutes of Health (KL2TR000450, 5r01dk060022-19, UL1TR000448)
- National Heart, Lung, and Blood Institute (T32HL007456)
- National Institute of Diabetes and Digestive and Kidney Diseases (R01DK033301, DK37948, DK56341, R01DK037948, DK-60022, R01-DK-060022, P30DK056341, P30DK020579)
- National Center for Advancing Translational Sciences
- Topics
- Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
- Health Sciences › Nursing › Nutrition and Dietetics › Biochemical Analysis and Sensing Techniques
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
- Keywords
- bariatric surgery, Roux-en-Y gastric bypass, laparoscopic adjustable gastric banding, taste perception, dietary habits, weight loss, sweetness preference, sucrose, monosodium glutamate, food cravings, food cues, gustducin, fungiform papillae, taste sensitivity, women
- MeSH terms
- Adult, Feeding Behavior, Female, Humans, Middle Aged, Obesity, Morbid, Sodium Glutamate, Sucrose, Tongue, Transducin, Gastric Bypass, Weight Loss, Body Mass Index, Taste Perception, Craving
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