Most of qualitative dietary changes observed one year post-bariatric surgery can be achieved with a preoperative dietary intervention

D. Benaiges, Alejandra Parri, I. Subirana, Juan Pedro-Botet, Montserrat Villatoro, Jose M. Ramon, Elisenda Climent, Juana A. Flores Le Roux, Alberto Goday

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2 Citations (Scopus)


© 2019 SEEN y SED Background and objectives: Bariatric surgery (BS) leads to several changes in nutritional habits that can be attributed to different mechanisms. Some of these changes could be achievable with a preoperative nutritional intervention. The objective was to evaluate dietary modifications during the preoperative and postoperative periods of BS. Methods: Prospective observational study of patients who underwent BS between 2010 and 2014 at the Hospital del Mar; 60 consecutive patients were included. Food consumption was measured by a validated food-frequency questionnaire at inclusion in the bariatric surgery program, after preoperative nutritional intervention, and one year after surgery. Generalized estimating equation models were used to assess differences in food group intake during follow up. Results: Energy intake significantly decreased from inclusion to 1 year of surgery (p = 0.003). After the preoperative intervention and prior to surgery, there was an increase in intake of nuts, vegetables, poultry and rabbit, fruit, fish and skimmed milk products and a decrease in bread, soft drinks and pastry. At one year post-surgery, a continued decrease in the consumption of bread and soft drinks and an increase in nuts was observed (linear non-quadratic trend). Consumption of fruit, pastry, fish and skimmed milk products remained stable showing a linear and quadratic trend. Vegetables and poultry and rabbit increased in the preoperative period and decreased after surgery, showing a quadratic but not linear trend. Conclusions: a preoperative nutritional intervention in morbidly obese patients can associate favorable dietary changes that are mostly maintained one year after bariatric surgery.
Original languageEnglish
JournalEndocrinologia, Diabetes y Nutricion
Publication statusPublished - 1 Jan 2019


  • Bariatric surgery
  • Dietary intake
  • Food groups
  • Micronutrients
  • Preoperative


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