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  • Title: Hedonic Changes in Food Choices Following Roux-en-Y Gastric Bypass.
    Author: Hansen TT, Jakobsen TA, Nielsen MS, Sjödin A, Le Roux CW, Schmidt JB.
    Journal: Obes Surg; 2016 Aug; 26(8):1946-55. PubMed ID: 27173820.
    Abstract:
    It has been suggested that a shift in food choices leading to a diet with a lower energy density plays an important role in successful weight loss after Roux-en-Y gastric bypass (RYGB) surgery. A decreased hedonic drive to consume highly palatable foods may explain these changes in eating behavior. Here, we review the literature examining postoperative changes in mechanisms contributing to hedonic drive (food preferences, reinforcing value of food, dopamine signaling, and activity reward-related brain regions). The majority of studies reviewed support that RYGB decrease the hedonic drive to consume highly palatable foods. Still, in order to fully understand the complexity of these changes, we need studies combining sociological and psychological approaches with objective measures of actual food choices examining different measures of hedonic drive.
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