Obesity Surgery

, Volume 19, Issue 6, pp 708–716 | Cite as

Relation Between Carbohydrate Intake and Weight Loss After Bariatric Surgery

  • Silvia Leite FariaEmail author
  • Orlando Pereira Faria
  • Tatiane Carvalho Lopes
  • Marcelle Vieira Galvão
  • Emily de Oliveira Kelly
  • Marina Kiyomi Ito
Research Article



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.


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.


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.


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).


Carbohydrate intake Glycemic load Bariatric surgery Roux-en-Y gastric bypass Weight loss 


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Copyright information

© Springer Science + Business Media, LLC 2008

Authors and Affiliations

  • Silvia Leite Faria
    • 1
    • 2
    Email author
  • Orlando Pereira Faria
    • 2
  • Tatiane Carvalho Lopes
    • 2
  • Marcelle Vieira Galvão
    • 2
  • Emily de Oliveira Kelly
    • 2
  • Marina Kiyomi Ito
    • 1
  1. 1.University of BrasíliaBrasíliaBrazil
  2. 2.Gastrocirurgia de Brasília, Private practiceBrasíliaBrazil

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