Recommendation ID
What are the long-term effects of using very-low-calorie diets (VLCDs) versus low-calorie diets
(LCDs) on weight and quality of life in patients with a BMI of 40 kg/m2 or more, including the
impact on weight cycling?
Any explanatory notes
(if applicable)
There was little information found in the literature search on the use of VLCDs in patients with a BMI above 40 kg/m2, although they are increasingly used in this group of patients. There was also a lack of data on quality of life. The Guideline Development Group was concerned about VLCDs potential encouraging disordered eating or weight cycling, which is detrimental to both physical and psychological health. It would also be useful to differentiate between liquid VLCDs and those VLCDs which incorporate solid food products to identify whether the liquid formulation or the energy reduction alone affected weight loss, quality of life, and subsequent disordered eating.

Source guidance details

Comes from guidance
Obesity: identification, assessment and management
Date issued
November 2014

Other details

Is this a recommendation for the use of a technology only in the context of research? No  
Is it a recommendation that suggests collection of data or the establishment of a register?   No  
Last Reviewed 22/12/2014