title: Relation between carbohydrate intake and weight loss after bariatric surgery.
abstract: BACKGROUND
  Weight loss and long-term weight maintenance in bariatric surgery patients are related to maintaining satiety. It can be related to glycemic load (GL) and carbohydrate (g CHO) intake. The aim of this study was to investigate the effect of g CHO and GL and in weight loss on patients who had undergone bariatric surgery.
  
  
  METHODS
  The following measurements/calculations were conducted as follows: current body weight (kg), current BMI, percentage of excess weight loss (PEWL), average monthly weight loss (AMWL), energy intake (kcal per day), and GL calculation. Correlations were found among the studied variables. A multiple linear regression analysis of diet variables executed with GL and weight loss.
  
  
  RESULTS
  The population presented 66% of EWL. The average of total energy intake (TEI) was 1220+/-480, and the calculated GL resulted in an average of 73.2. Negative correlations were found between AMWL and TEI (p=0.04), and between AMWL and GL (p=0.009); furthermore, a negative correlation was found between carbohydrate intake in grams and AMWL (p=0.003). A positive correlation (p=0.017) was found between GL and TEI. Weight loss and GL were also correlated. Among the intake variables, GL and g CHO consumed are held accountable for 62 percent of AMWL. The multiple linear regression analysis showed that GL and carbohydrate grams (g CHO) account for 62% of AMWL.
  
  
  CONCLUSIONS
  The glycemic load and grams of carbohydrate are intake factors that can be useful tools in weight loss and long-term weight maintenance on patients who have undergone Roux-en-Y Gastric Bypass (RYGB).
authors.affiliation: University of Brasília, Brasília, Brazil. silvialeitefaria@brturbo.com.br
authors.forename: Silvia Leite
authors.initials: SL
authors.lastname: Faria
authors.forename: Orlando Pereira
authors.initials: OP
authors.lastname: Faria
authors.forename: Tatiane Carvalho
authors.initials: TC
authors.lastname: Lopes
authors.forename: Marcelle Vieira
authors.initials: MV
authors.lastname: Galvão
authors.forename: Emily
authors.initials: E
authors.lastname: de Oliveira Kelly
authors.forename: Marina Kiyomi
authors.initials: MK
authors.lastname: Ito
mesh_terms: D000328:Adult; D000465:Algorithms; D001786:Blood Glucose / Q000378:metabolism*; D015992:Body Mass Index; D001835:Body Weight; D003430:Cross-Sectional Studies; D004040:Dietary Carbohydrates / Q000008:administration & dosage*; D004435:Eating / Q000502:physiology*; D005260:Female; D015390:Gastric Bypass / Q000379:methods*; D038321:Glycemic Index; D006801:Humans; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D012044:Regression Analysis; D012189:Retrospective Studies; D013997:Time Factors; D015431:Weight Loss / Q000502:physiology*; D055815:Young Adult
chemical_list: D001786:Blood Glucose; D004040:Dietary Carbohydrates