Background
The current prosperity has led to the acquisition of inadequate habits, which can result in overweightness and obesity and the deterioration of body image. The aim of the present study was to assess the suitability of a psycho-nutritional model to improve the perception of body image and increase the self-esteem of individuals who are overweight or obese. Methods: A total of 55 participants (55 men and 30 women) were included in the study. The measurements were taken under ambulatory treatment, to obtain measurements of weight, self-esteem, and perception of body image, with the use of the Rosenberg scale, and the Body Self-esteem scale. Results: At the end of the intervention, and after a year, weight reductions of 11 and 16.3 Kgs (for women and men, respectively), increases of 65.2% and 76.1% in the positive perception of image (in women and men, respectively), as well as an improvement of 51.4% and 60.3% in self-esteem (women and men, respectively). Addressing overweightness and obesity in a plural manner, as in the psy-cho-nutritional model, is an efficient approach, favoring far-reaching perspectives. Conclusions: The model is effective for weight reduction, together with improved levels of self-esteem, and favorable perceptions of body image.