Non-pharmacological interventions

Abstract

Obesity and type 2 diabetes mellitus (T2DM) are chronic, complex, and heterogeneous diseases whose pathophysiology results from the interaction of biological, behavioral, environmental, and sociocultural factors. In this context, precision medicine proposes a paradigm shift, moving away from the traditional model of uniform interventions toward individualized therapeutic strategies based on each person's pathophysiological and clinical characteristics. While this approach has been primarily driven by the development of targeted pharmacological therapies, its application to non-pharmacological treatment is gaining increasing relevance and allows Medical Nutrition Therapy (MNT) to be repositioned as an essential component of comprehensive management.

The available evidence demonstrates that the response to lifestyle interventions exhibits marked interindividual variability, which calls into question the existence of a universally superior dietary pattern. Consequently, nutrition and behavioral modification (NBM) should be conceived as a precision intervention, designed by integrating pathophysiological, metabolic, behavioral, and psychosocial variables, including the obesity phenotype, eating behavior, individual preferences, comorbidities, sociocultural context, and the capacity to sustain changes over time. In this sense, the characterization of pathophysiological obesity phenotypes, such as alterations in satiation, satiety, emotional eating, and energy expenditure, exemplifies how understanding the underlying biological mechanisms can guide more specific and potentially more effective nutritional and behavioral interventions.

The most recent recommendations from the American Diabetes Association reaffirm that nutrition, physical activity, and behavioral modification strategies are the cornerstone of obesity and diabetes mellitus (DM) treatment, emphasizing the need for structured, intensive, and person-centered interventions. The challenge in practice remains the implementation of precise behavioral interventions that promote the acquisition and maintenance of lifestyle changes.