Special Issue "The Effect of Bariatric Surgery on Food and Taste Preferences Contributing to Weight Loss"
Deadline for manuscript submissions: 1 September 2021.
Interests: appetite control; eating behavior; energy balance; energy metabolism; bariatric surgery; pharmacological treatment of obesity; sleep and regulation of body weight
Weight loss after bariatric surgery (BS) is mainly caused by a substantial decrease in energy intake. This reduction may not only be a consequence of generally decreased food intake, but may also depend on a shift in food preferences, away from sugary and high-fat foods towards less energy-dense foods. This hypothesis is exclusivly based on self-reported measures of food intake, likely to be influenced by recall bias that may lead to underestimation of the intake of certain foods. This hypothesis is, however, supported by studies on rodents, but can we translate these findings to humans?
The underlying physiological mechanisms driving the proposed changes in food preferences have been proposed to include changes within the sensory and reward domains of taste, leading to an unconditioned shift in food preferences. The experience of postprandial discomfort after ingestion of energy-dense foods, resulting in conditioned avoidance of these foods, may also be involved. Altered gut hormone responses have been implicated as mediators in this “reprogramming” of food preferences towards a diet comprising fewer sugary and fatty foods.
Food-related behavior is, however, multifactorial and the shift in food preferences after bariatric surgery may not only be a direct physiological response. It is more likely a result of an interplay between physiological responses to surgery and social conditions and relations, as well as psychological factors. A better understanding of this area may help us to improve care for patients after bariatric surgery.
Prof. Dr. Anders M. Sjodin
Manuscript Submission Information
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- bariatric surgery
- obesity surgery
- sleeve gastrectomy
- reward value
- food choices
- food preferences
- taste preferences
- eating behaviour
- food-related behaviour
- consummatory behaviour