• Nutrition · Jan 2017

    Eating patterns and food choice as determinant of weight loss and improvement of metabolic profile after RYGB.

    • Bárbara Dal Molin Netto, Carrie P Earthman, Gisele Farias, Deborah Cristina Landi Masquio, Ana Paula Grotti Clemente, Priscilla Peixoto, Solange Cravo Bettini, Maria Emilia von Der Heyde, and Ana R Dâmaso.
    • Postgraduate Program of Nutrition, Universidade Federal de São Paulo - Escola Paulista de Medicina - UNIFESP-EPM. Post Graduate Program in Nutrition, São Paulo, SP, Brazil. Electronic address: barbaradmnetto@gmail.com.
    • Nutrition. 2017 Jan 1; 33: 125-131.

    ObjectiveSignificant changes in the preference for different dietary components have been observed after Roux-en-Y gastric bypass (RYGB). The aim of this study was to evaluate the early post-RYGB changes in quality of eating patterns and their relationship to weight loss and metabolic parameters.MethodsThe sample was composed of 41 extremely obese individuals undergoing RYGB. Dietary data were collected using a validated food frequency questionnaire in Brazil. A food intake evaluation was conducted with a focus on the frequency of consumption (≥4 times/wk) of markers for healthy eating and markers for unhealthy eating. Furthermore, anthropometric and metabolic markers were collected before surgery and 6 mo post-RYGB.ResultsCompared with baseline, the postsurgery body mass index was reduced by 12.9 kg/m(2), corresponding to an excess weight loss of 63.5%. Blood glucose, insulin, ferritin, cholesterol, low-density lipoprotein-cholesterol, triacylglycerol (TG), and hemoglobin were reduced 6 mo after RYGB (P < 0.05). The consumption frequency of many foods defined as unhealthy decreased after surgery (e.g., from 15.4% to 5.1% for pizza and 18% to 0% for hamburger), and some healthy food increased (e.g., from 0% to 5.1% for fish and from 0% to 25.6% for plain yogurt). There was a decrease in the frequency of individuals who reported consuming fruit and vegetables. Conversely, insulin, glucose, and TG levels were positively associated with intake of chocolates/truffles and ice cream/sundaes.ConclusionParticipants in the present study appeared to develop a healthier dietary pattern by 6 mo after RYGB. These results show that a healthier dietary pattern is associated with a significant improvement of metabolic profile and weight loss.Copyright © 2016 Elsevier Inc. All rights reserved.

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