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Repisalud author Martínez-Ortega, Antonio J. author Olveira, Gabriel author Pereira-Cunill, José L. author Arraiza-Irigoyen, Carmen author García-Almeida, José M. author Irles Rocamora, José A. author Molina-Puerta, María J. author Molina Soria, Juan B. author Rabat-Restrepo, Juana M. author Rebollo-Pérez, María I. author Serrano-Aguayo, María P. author Tenorio-Jiménez, Carmen author Vílches-López, Francisco J. author García-Luna, Pedro P. authoraffiliation [Martínez-Ortega,AJ; Pereira-Cunill,JL; Serrano-Aguayo,MP; García-Luna,PP] Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen del Rocío, Sevilla, Spain. [Martínez-Ortega,AJ; Pereira-Cunill,JL; Serrano-Aguayo,MP; García-Luna,PP] Endocrine Diseases Research Group, Institute of Biomedicine of Seville (IBiS), Sevilla, Spain. [Olveira,G] Unidad de Gestión Clínica de Endocrinología y Nutrición, Hospital Regional Universitario de Málaga/Universidad de Málaga, Málaga, Spain. [Olveira,G; García-Almeida,JM] Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain. [Olveira,G]5 CIBERDEM (CB07/08/0019), Instituto de Salud Carlos III, Madrid, Spain. [Arraiza-Irigoyen,C] Servicio de Endocrinología y Nutrición, Complejo Hospitalario de Jaén, Jaén, Spain. [García-Almeida,JM] Unidad de gestión Clínica de Endocrinología y Nutrición, Hospital Universitario Virgen de la Victoria, Málaga, Spain. [Irles Rocamora,JA] UGC Endocrinología y Nutrición, Hospital Universitario Valme, Sevilla, Spain. [Molina-Puerta] UGC Endocrinología y Nutrición, Hospital Universitario Reina Sofía, Córdoba, Spain. [Molina-Puerta] Instituto Maimónides de Investigación Biomédica de Córdoba (IMIBIC), Córdoba, Spain. [Molina Soria,JB] U. Nutrición y Dietética. Hospital General, Linares, Jaén, Spain. [Rabat-Restrepo,JM] Endocrinología y Nutrición, Hospital Universitario Virgen Macarena, Sevilla, Spain. [Rebollo-Pérez,MI] Servicio de Endocrinología y Nutrición, Hospital Juan Ramón Jiménez, Huelva, Spain. [Tenorio-Jiménez,C] Endocrinology and Nutrition Clinical Management Unit, University Hospital Virgen de las Nieves, Granada, Spain. [Vílches-López,FJ] Servicio de Endocrinología y Nutrición, Hospital Puerta del Mar, Cádiz, Spain. [García-Luna,PP] GARIN Group Coordinator, Seville, Spain. 2024-02-12T19:46:37Z 2024-02-12T19:46:37Z 2020-07-06 10.3390/nu12072002 2072-6643 Nutrients http://hdl.handle.net/10668/3671 32640531 http://hdl.handle.net/20.500.12105/18072 In order to develop evidence-based recommendations and expert consensus for nutrition management of patients undergoing bariatric surgery and postoperative follow-up, we conducted a systematic literature search using PRISMA methodology plus critical appraisal following the SIGN and AGREE-II procedures. The results were discussed among all members of the GARIN group, and all members answered a Likert scale questionnaire to assess the degree of support for every recommendation. Patients undergoing bariatric surgery should be screened preoperatively for some micronutrient deficiencies and treated accordingly. A VLCD (Very Low-Calorie Diet) should be used for 4-8 weeks prior to surgery. Postoperatively, a liquid diet should be maintained for a month, followed by a semi-solid diet also for one month. Protein requirements (1-1.5 g/kg) should be estimated using adjusted weight. Systematic use of specific multivitamin supplements is encouraged. Calcium citrate and vitamin D supplements should be used at higher doses than are currently recommended. The use of proton-pump inhibitors should be individualised, and vitamin B12 and iron should be supplemented in case of deficit. All patients, especially pregnant women, teenagers, and elderly patients require a multidisciplinary approach and specialised follow-up. These recommendations and suggestions regarding nutrition management when undergoing bariatric surgery and postoperative follow-up have direct clinical applicability. eng Bariatric surgery Obesity Nutrient deficiency Cirugía bariátrica Obesidad Enfermedades carenciales Dieta Micronutrientes Recommendations Based on Evidence by the Andalusian Group for Nutrition Reflection and Investigation (GARIN) for the Pre- and Postoperative Management of Patients Undergoing Obesity Surgery review article