title: Protein intake, body composition, and protein status following bariatric surgery.
abstract: BACKGROUND
  Daily protein intake recommendations have recently been proposed for the bariatric patient. We aimed to evaluate the accomplishment of these recommendations, and the influence of protein intake (PI) on fat free mass (FFM) and protein status changes following bariatric surgery.
  
  
  METHODS
  We examined 101 consecutive patients undergoing laparoscopic Roux-in-Y gastric gypass (LGBP) or laparoscopic sleeve gastrectomy (LSG). Based on 3-day food records, PI from food and supplements were quantified at 4, 8, and 12 months after surgery. The association between PI and body composition (bioelectrical impedance), plasma albumin and pre-albumin was evaluated at all study time points.
  
  
  RESULTS
  A PI <60 g/day was present respectively in 45%, 35%, and 37% of the cohort at 4, 8, and 12 months after surgery (p < 0.001 relative to baseline). Despite our universal recommendation of protein supplementation, supplements were taken only by 63.4, 50.5, and 33.7% of the participants at 4, 8, and 12 months. However, protein supplementation was effective in helping patients to achieve the daily protein intake goal. In linear regression analysis, male gender and weight loss, but not PI, were significantly associated with loss of FFM (p < 0.001). No significant correlation between PI and plasma albumin or pre-albumin was found.
  
  
  CONCLUSIONS
  Our study underscores the value of protein supplementation for the achievement of the recommended daily protein intake in the bariatric patient. However, our data does not help to define a PI goal as critical in determining the FFM and protein status changes following LGBP or LSG.
authors.affiliation: Obesity Unit, Endocrinology and Diabetes Department, Hospital Clínic Universitari, Villarroel 170, 08036, Barcelona, Spain.
authors.forename: Alba
authors.initials: A
authors.lastname: Andreu
authors.forename: Violeta
authors.initials: V
authors.lastname: Moizé
authors.forename: Lucía
authors.initials: L
authors.lastname: Rodríguez
authors.forename: Lilliam
authors.initials: L
authors.lastname: Flores
authors.forename: Josep
authors.initials: J
authors.lastname: Vidal
mesh_terms: D000328:Adult; D050110:Bariatric Surgery; D001823:Body Composition; D004044:Dietary Proteins; D004435:Eating; D005260:Female; D006801:Humans; D008297:Male; D009752:Nutritional Status; D009767:Obesity, Morbid / Q000601:surgery*
chemical_list: D004044:Dietary Proteins
references.citation: Ann Surg. 2006 Nov;244(5):715-22
references.pmid: 17060764
references.citation: Am J Clin Nutr. 2003 Jul;78(1):22-30
references.pmid: 12816767
references.citation: Clin Chem Lab Med. 2002 Dec;40(12):1281-91
references.pmid: 12553432
references.citation: Diabetes Care. 1999 May;22(5):684-91
references.pmid: 10332666
references.citation: Nutr Clin Pract. 2003 Apr;18(2):141-4
references.pmid: 16215032
references.citation: Curr Opin Endocrinol Diabetes Obes. 2008 Oct;15(5):416-21
references.pmid: 18769212
references.citation: Obes Surg. 2003 Feb;13(1):23-8
references.pmid: 12630609
references.citation: Obes Surg. 2010 Jun;20(6):716-21
references.pmid: 18931884
references.citation: Obes Surg. 2008 May;18(5):487-96
references.pmid: 18357494
references.citation: Int J Obes Relat Metab Disord. 1999 Oct;23(10):1035-46
references.pmid: 10557024
references.citation: Obes Surg. 2006 Jan;16(1):24-30
references.pmid: 16417753
references.citation: Diabetes Metab. 2007 Feb;33(1):13-24
references.pmid: 17258928
references.citation: Obesity (Silver Spring). 2009 Apr;17 Suppl 1:S1-70, v
references.pmid: 19319140
references.citation: Obes Surg. 1999 Apr;9(2):150-4
references.pmid: 10340768
references.citation: Med Sci Sports Exerc. 2010 Feb;42(2):326-37
references.pmid: 19927027
references.citation: Obes Surg. 2009 Jul;19(7):840-4
references.pmid: 18696170
references.citation: Obesity (Silver Spring). 2006 Aug;14(8):1283-93
references.pmid: 16988070
references.citation: N Engl J Med. 2007 Aug 23;357(8):741-52
references.pmid: 17715408
references.citation: Obes Surg. 2008 Sep;18(9):1077-82
references.pmid: 18521701
references.citation: Obes Surg. 2009 Jan;19(1):56-65
references.pmid: 18542847
references.citation: Int J Obes (Lond). 2007 May;31(5):743-50
references.pmid: 17075583
references.citation: Annu Rev Nutr. 2009;29:21-41
references.pmid: 19400750
references.citation: Obes Surg. 2010 Mar;20(3):332-9
references.pmid: 19862582