Dieting

Dieting, defined as intentional caloric restriction to reduce body weight, is part of a multi-factorial approach and not the only strategy for weight loss. A correct diet requires a caloric deficit of 500 to 1000 kcal/day, usually inducing a weight loss at the rate of 1 to 2 lb/ week. It has to be prescribed by a clinical nutritionist or registered dietitian in order to ensure an adequate nutrient composition. The short-term efficacy of low-calorie diets has been consistently demonstrated independent of the macronutrient composition of the diets, but has to be integrated with other approaches (exercise, psychological support ) as needed by each patient, to improve long-term treatment outcome.