In clinical practice, the distinction between genetic and dietary obesity is often not clear-cut, probably due to the lack of an accessible, low-cost genetic test. Due to the complexity and severity of obesity, it is necessary to know the aetiological factors in order to direct patients towards appropriate treatment. With this in mind, the aim of this study was to identify phenotypic and molecular markers for obesity and assess the feasibility of using them in the multiprofessional monitoring of obese patients.