title: Structured dietary intervention to facilitate weight loss after bariatric surgery: A randomized, controlled pilot study.
abstract: To evaluate the potential utility of a structured dietary intervention to assist bariatric surgery patients with weight management.
  
  
  
  Participants who underwent Roux-en-Y gastric bypass surgery 1 year previously were randomly assigned to a structured dietary intervention incorporating portion-controlled foods (intervention, n = 20) or a comparison group (control, n = 20). Both groups received instruction in behavioral weight loss (one 60-min session) followed by four monthly coaching telephone calls. Assessments were conducted at baseline, 4 months (post-intervention), and 6 months.
  
  
  
  Participants were 85% female and 80% White. Average age was 46.9 (11.1) years, and body mass index was 31.3 (5.4) kg/m(2) at enrollment. Percent weight change from enrollment was significantly greater for intervention compared with control participants at 4 months [-4.56% vs. -0.13%, t(30)  = -3.29, P = 0.003] and 6 months [-4.07% vs. -0.14%, t(31)  = -2.03, P = 0.05]. Change in average daily calorie intake was greater among intervention compared with control [-108 vs. 116, t(30)  = -2.01, P = 0.05] at 4 months only.
  
  
  
  A structured dietary intervention increased weight loss and reduced calorie intake when initiated 1 year following Roux-en-Y gastric bypass. This approach holds promise for optimizing postsurgery lifestyle change.
authors.affiliation: Department of Psychiatry, University of Pittsburgh School of Medicine, Pennsylvania, USA.|Duquesne University School of Nursing, Pittsburgh, Pennsylvania, USA.
authors.forename: Melissa A
authors.initials: MA
authors.lastname: Kalarchian
authors.affiliation: Department of Psychiatry, University of Pittsburgh School of Medicine, Pennsylvania, USA.
authors.forename: Marsha D
authors.initials: MD
authors.lastname: Marcus
authors.affiliation: Department of Minimally Invasive Bariatric and General Surgery, University of Pittsburgh Medical Center, Pennsylvania, USA.
authors.forename: Anita P
authors.initials: AP
authors.lastname: Courcoulas
authors.affiliation: Department of Statistics, University of Pittsburgh, Pennsylvania, USA.
authors.forename: Calvin
authors.initials: C
authors.lastname: Lutz
authors.affiliation: Department of Psychiatry, University of Pittsburgh School of Medicine, Pennsylvania, USA.|Department of Statistics, University of Pittsburgh, Pennsylvania, USA.
authors.forename: Yu
authors.initials: Y
authors.lastname: Cheng
authors.affiliation: Department of Psychiatry, University of Pittsburgh School of Medicine, Pennsylvania, USA.
authors.forename: Gina
authors.initials: G
authors.lastname: Sweeny
mesh_terms: D000328:Adult; D050110:Bariatric Surgery; D004032:Diet; D005260:Female; D005518:Food Preferences; D006266:Health Education / Q000379:methods*; D006801:Humans; D008019:Life Style; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000178:diet therapy* / Q000601:surgery; D010865:Pilot Projects; D012107:Research Design; D015431:Weight Loss