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Different dietary strategies for weight loss in obesity: role of energy and macronutrient content

Published online by Cambridge University Press:  14 December 2007

I Abete ,
M. D Parra ,
M. A Zulet  and
J. A Martínez
I Abete
Affiliation:
Department of Physiology and Nutrition, University of Navarra, Irunlarrea s/n, 31008 Pamplona, Spain
M. D Parra
Affiliation:
Department of Physiology and Nutrition, University of Navarra, Irunlarrea s/n, 31008 Pamplona, Spain
M. A Zulet
Affiliation:
Department of Physiology and Nutrition, University of Navarra, Irunlarrea s/n, 31008 Pamplona, Spain
J. A Martínez*
Affiliation:
Department of Physiology and Nutrition, University of Navarra, Irunlarrea s/n, 31008 Pamplona, Spain
*
*Corresponding author: Professor J. Alfredo MartíLnez, fax +34 948425649, email [email protected]
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Abstract

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Obesity is a chronic disorder caused by an imbalance of the energy metabolism with high associated burdens. Therefore, huge efforts are being currently devoted in studying new types of hypoenergetic diets and their composition, in order to characterise more specific, long-lasting and safe slimming protocols. A number of investigations are trying to determine the specific influence of the macronutrient distribution in energy-restricted diets on the management of excessive body weight. In this context, very-low-energy diets supplying between 1670 and 3350 kJ (400 and 800 kcal)/d have been beneficial in short-term treatments causing a weight loss of 300–500 g/d. Such strategies place more emphasis on energy restriction than on the macronutrient composition of the diet prescription. Weight loss produced by either low-carbohydrate or low-fat moderately energy-restricted diets ranges from 0·5 to 1·0 kg/week, while diets with high or moderately high protein content have also been applied in weight-reducing programmes by inducing losses of 0·2–0·4 kg/week. Other factors that determine weight loss by dieting are sex, age, initial body weight, race, genetics, regional fat deposition, etc, which must be taken into account to explain the variability in the outcomes of different low-energy diets. Therefore, more research is needed about the impact of diets with different fuel substrates and foods on the characteristics of the weight-loss process.

Keywords

ObesityMacronutrient distributionEnergy-restricted dietsLow-carbohydrate dietsLow-fat dietsWeight loss
Type
Research Article
Information
Nutrition Research Reviews , Volume 19 , Issue 1 , June 2006 , pp. 5 - 17
Copyright
Copyright © The Authors 2006

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