Changes in Eating Behaviour and Meal Pattern Following Roux-En-Y Gastric Bypass
Open accessAbstract
Background Little is known about eating behaviour and meal pattern subsequent to Roux-en-Y gastric bypass (RYGB), knowledge important for the nutritional care process. The objective of the study was to obtain basic information of how meal size, eating rate, meal frequency and eating behaviour change upon the RYGB surgery.Materials and methods Voluntary chosen meal size and eating rate were measured in a longitudinal, within subject, cohort study of 43 patients, 31 women and 12 men, age 42.6 (s.d. 9.7) years, body mass index (BMI) 44.5 (4.9) kg m(-2). Thirty-one non-obese subjects, 37.8 (13.6) years, BMI 23.7 (2.7) kg m(-2) served as a reference group. All subjects completed a meal pattern questionnaire and the Three-Factor Eating Questionnaire (TFEQ-R21).Results Six weeks postoperatively meal size was 42% of the preoperative meal size, (P<0.001). After 1 and 2 years, meal size increased but was still lower than preoperative size 57% (P<0.001) and 66% (P<0.001), respectively. Mean meal duration was constant before and after surgery. Mean eating rate measured as amount consumed food per minute was 45% of preoperative eating rate 6 weeks postoperatively (P<0.001). After 1 and 2 years, eating rate increased to 65% (P<0.001) and 72% (P<0.001), respectively, of preoperative rate. Number of meals per day increased from 4.9 (95% confidence interval, 4.4,5.4) preoperatively to 6 weeks: 5.2 (4.9,5.6), (not significant), 1 year 5.8 (5.5,6.1), (P=0.003), and 2 years 5.4 (5.1,5.7), (not significant). Emotional and uncontrolled eating were significantly decreased postoperatively, (both P<0.001 at all-time points), while cognitive restraint was only transiently increased 6 weeks postoperatively (P=0.011).Conclusions Subsequent to RYGB, patients display markedly changed eating behaviour and meal patterns, which may lead to sustained weight loss.
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Beyond 18 months after bariatric surgery, results on emotion-based eating are mixed, with some studies suggesting attenuation through 36 months and others finding reoccurrence between 12 and 36 months.
“Results beyond the 18-month timeframe are mixed, with some studies suggesting attenuation of emotion-based eating through 36 months after having bariatric surgery and other studies finding reoccurrence between 12 and 36 months after having bariatric surgery (33–39).”
From Behavioral Interventions to Attenuate Driven Overeating and Weight Regain After Bariatric Surgery (2022) · cites this paper as [36]
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- Authors
- Laurenius, A., Larsson, I., Bueter, M., Melanson, K. J., Bosaeus, I., Forslund, H. B., Lönroth, H., Fändriks, L., & Olbers, T.
- Affiliations
- University of Gothenburg (SE)
- Sahlgrenska University Hospital (SE)
- University Hospital Zurich (CH)
- University of Rhode Island (US)
- Imperial College London (GB)
- Corresponding author
- Laurenius, A
- Venue
- International Journal of Obesity
- Published
- 2011-11-29
- Volume
- 36
- Issue
- 3
- Pages
- 348-355
- ISSN
- 0307-0565 (ISSN-L)
- 1476-5497
- OpenAlex
- W2140815738
- Cited by
- 174
- References
- 55
- Citations by year
- 2026: 4 · 2025: 7 · 2024: 8 · 2023: 4 · 2022: 14 · 2021: 16 · 2020: 16 · 2019: 13 · 2018: 12 · 2017: 11 · 2016: 20 · 2015: 16 · 2014: 12 · 2013: 15 · 2012: 6
- FWCI
- 10.79
- Type
- journal article
- Language
- en
- Open access
- Licence
- Locations
- International Journal of Obesity (publishedVersion)
- PubMed (publishedVersion)
- Journal of Media Literacy Education (submittedVersion, cc-by)
- Zurich Open Repository and Archive (University of Zurich) (submittedVersion)
- Topics
- Health Sciences › Medicine › Surgery › Bariatric Surgery and Outcomes
- Health Sciences › Nursing › Nutrition and Dietetics › Nutrition, Health and Food Behavior
- Social Sciences › Psychology › Clinical Psychology › Eating Disorders and Behaviors
- Keywords
- Roux-en-Y gastric bypass, eating behaviour, meal patterns, meal size, eating speed, meal frequency, emotional eating, uncontrolled eating, cognitive restraint, bariatric surgery, obesity, postoperative changes, Three-Factor Eating Questionnaire, meal duration, nutritional care process, obesity surgery outcomes, binge eating, compensatory eating
- MeSH terms
- Adaptation, Psychological, Adult, Dumping Syndrome, Feeding Behavior, Female, Follow-Up Studies, Humans, Longitudinal Studies, Male, Obesity, Morbid, Postoperative Period, Surveys and Questionnaires, Sweden, Cohort Studies, Gastric Bypass, Weight Loss, Body Mass Index
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