PROTEIN, AMINO ACID METABOLISM AND THERAPY: Edited by Rajavel Elango and Alessandro LavianoThe relevance of dietary protein after bariatric surgery what do we know?Steenackers, Nele*; Gesquiere, Ina*; Matthys, Christophe Author Information Clinical and Experimental Endocrinology, Departement of Chronic Diseases, Metabolism and Ageing, KU Leuven, Campus Gasthuisberg, Leuven, Belgium Correspondence to Christophe Matthys, DIEET University Hospitals Leuven, Herestraat 49, 3000 Leuven, Belgium. Tel: +32 16 34 26 55; e-mail: [email protected] Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal's Website (http://co-clinicalnutrition.com). Current Opinion in Clinical Nutrition and Metabolic Care: January 2018 - Volume 21 - Issue 1 - p 58-63 doi: 10.1097/MCO.0000000000000437 Buy SDC Metrics Abstract Purpose of review The growing obesity epidemic is associated with an increased demand for bariatric surgery with Roux-en-Y Gastric Bypass and Sleeve Gastrectomy as the most widely performed procedures. Despite beneficial consequences, nutritional complications may arise because of anatomical and physiological changes of the gastrointestinal tract. The purpose of this review is to provide an update of the recent additions to our understanding of the impact of bariatric surgery on the intake, digestion and absorption of dietary protein. Recent findings After bariatric surgery, protein intake is compromised because of reduced gastric capacity and aversion for certain foods. A minority of patients reaches the recommended protein intake of minimal 60 g per day, which results in the loss of fat-free mass rather than the desired loss of fat mass. Despite inadequate protein intake, protein digestion and absorption do not seem to be impaired suggesting that other mechanisms could counteract the reduced secretion of digestive enzymes and their delayed inlet. Summary After bariatric surgery, protein supplementation or diet enrichment could attribute to achieve the minimal recommended protein intake and benefit the amount and composition of postoperative weight loss. https://links.lww.com/COCN/A12 Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.