Document Detail


Effectiveness of energy-restricted diets with different protein:carbohydrate ratios: the relationship to insulin sensitivity.
MedLine Citation:
PMID:  19889249     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
OBJECTIVE: Insulin sensitivity could determine the effectiveness of weight-loss diets with different protein:carbohydrate ratios. Our aim was to evaluate whether or not energy-restricted diets with different protein:carbohydrate ratios in obese individuals with (IR) or without (IS) insulin resistance could lead to differences in weight loss or insulin sensitivity.
DESIGN: Prospective, randomized, clinical intervention study. Thirty-six obese patients, allocated to the IR or IS group after a 75 g oral glucose tolerance test and calculation of the homeostasis model assessment of insulin resistance (HOMA) index, were assigned to follow an energy-restricted diet with either 40 % carbohydrate/30 % protein/30 % fat (diet A) or 55 % carbohydrate/15 % protein/30 % fat (diet B) and followed up to 16 weeks.
RESULTS: Twenty-one IR and fifteen IS patients were randomized to diet A or B. After 16 weeks, there was no difference in weight loss between diets A and B in each group. Glucose and insulin levels and HOMA were significantly reduced at 16 weeks, but no differences related to the type of diet were detected either in the IR or the IS group.
CONCLUSIONS: Varying the macronutrient composition of a hypoenergetic diet, regarding the percentage protein:carbohydrate ratio, did not produce different weight loss or result in an improvement in insulin sensitivity in people with or without insulin resistance.
Authors:
María D Ballesteros-Pomar; Alicia R Calleja-Fernández; Alfonso Vidal-Casariego; Ana M Urioste-Fondo; Isidoro Cano-Rodríguez
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Publication Detail:
Type:  Journal Article     Date:  2009-11-05
Journal Detail:
Title:  Public health nutrition     Volume:  13     ISSN:  1475-2727     ISO Abbreviation:  Public Health Nutr     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9808463     Medline TA:  Public Health Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  2119-26     Citation Subset:  IM    
Affiliation:
Endocrinology and Nutrition Department, Complejo Asistencial de León, Altos de Nava s/n, E-24008 León, Spain. mdballesteros@telefonica.net
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